This is the 43rd edition of this European event, and the appeal never fades. It must be said that in Paris and in Île-de-France, there are countless sites to visit year after year... The Heritage Days are back this weekend on Saturday 19 and Sunday 20 September 2026! More than 1,500 venues are opening their doors to us, free of charge or at a reduced price, inviting us to discover the history and hidden treasures of our region.
As always, Paris's many castles and museums are taking part in this cultural celebration. But how about a change this year? Take advantage of this exceptional event to visit historic monuments, which have everything to seduce the curious in search of new discoveries. Follow the guide to discover the most beautiful listed sites in the Paris region, and plunge into the heart ofhistory!
Discover the 2026 Heritage Days schedule across Paris's historic sites



Rare tours by the Ministry of Culture of the Palais-Royal for the 2026 Heritage Days in Paris.
We know the Palais-Royal gardens well, one of Paris’s most iconic spots. Its palace, though, is less accessible to the public—and for a good reason: it houses the Ministry of Culture. Good news: for Heritage Days 2026, you’ll be able to visit the institution through an exceptional open day. Here’s everything you need to know. [Read more]



Journées du Patrimoine 2026 in Paris: at the heart of a Place Vendôme jeweller’s
On the occasion of the 43rd edition of Heritage Days in Paris, a jewelry house invites you to discover its historic boutique-workshop located on Place Vendôme. Guided tours will be offered there for this weekend of September 19–20, 2026. [Read more]



Heritage Days 2026 at the Court of Auditors in Paris: tours and activities for everyone
It's the big return of Heritage Days this weekend, September 19–20, 2026, in Paris and Île-de-France. An opportunity to discover the secrets of the capital's great institutions, including the Court of Auditors, which unveils a wonderful lineup of tours and activities, with no reservations required. [Read more]



Heritage Days 2026 in Paris: the Ministry of Justice opens its doors to the public
On the occasion of Heritage Days, the Ministry of Justice opens the doors of the Hôtel de Bourvallais to us on Saturday, 19 September and Sunday, 20 September 2026. During a rare, self-guided visit, you can discover the office of the Keeper of the Seals. [Read more]



Heritage Days 2026: exclusive tours of the Bank of France in Paris
On the occasion of the 2026 Heritage Days, the Bank of France — housed in the Hôtel de Toulouse in the 1st arrondissement of Paris — will exceptionally open its doors on Saturday, September 19. It’s a chance to tour its gilded gallery and grand salons, and to explore the bank’s history and activities through a playful, engaging visit. [Read more]



Journées du Patrimoine 2026 : discover the Louvre Museum and its art studios in Paris
Event for Heritage Days 2026! On Saturday, September 19 and Sunday, September 20, 2026, the Louvre Museum’s art studios in Paris will exceptionally open their doors to you (registration required). A chance to learn more about their unique craft. It’s also an opportunity to discover the architecture of the famous Parisian museum! Note that bookings are moving fast—grab your tickets without delay. [Read more]



Heritage Days 2026: the Tour Jean-Sans-Peur, a medieval relic at the heart of Paris
Jean-Sans-Peur Tower invites visitors to step back into medieval Paris for Heritage Days, on September 19–20, 2026. This remnant of the Dukes of Burgundy’s palace reveals its history, its architecture, and the traces of a power that left its mark on the capital. [Read more]



Heritage Days 2026 at the National Institute of Art History and in its library (INHA)
For the 43rd edition of Heritage Days, the National Institute of Art History invites you to explore a range of free tours and activities for the whole family on September 19 and 20, 2026. It's a chance to step inside a building typically reserved for students and researchers. [Read more]



Heritage Days 2026: explore the Bibliothèque nationale de France’s Richelieu site in Paris.
The Richelieu site of the National Library of France is opening its doors free of charge for Heritage Days, on September 19 and 20, 2026. [Read more]



The monks' refectory opens up for Paris's Heritage Days 2026.
It's a genuine hidden gem that's been unfairly overlooked: during Heritage Days on September 19–20, 2026, come discover the Central Library of the Conservatoire national des arts et métiers. [Read more]



Heritage Days 2026 in Paris: discover the Maison d'Ourscamp, nestled in the heart of the marsh.
For the 2026 Heritage Days in Paris, let’s go discover the Maison d’Ourscamp, one of the few remnants that blends medieval and Renaissance architecture in the city. Mark your calendars for Saturday, September 19 and Sunday, September 20, 2026 for a free family outing with guided, commentary-led tours. [Read more]



Heritage Days 2026: a tour of the organ at Notre-Dame des Blancs-Manteaux Church
Les Journées du Patrimoine 2026 offrent une occasion rêvée de parcourir les lieux emblématiques de Paris. Parmi eux, l’église Notre-Dame des Blancs Manteaux ouvre grand ses portes les 19 et 20 septembre dans le quartier du Marais. Parcourez son histoire, admirez ses trésors architecturaux et laissez-vous gagner par la sérénité de ce site chargé d’histoire. [Read more]



Heritage Days 2026 at the Crédit Municipal de Paris, the old Mont-de-Piété
The Crédit Municipal de Paris invites you to step inside for the 43rd edition of Heritage Days. Here is the program waiting for you during this exceptional weekend of September 19–20, 2026. [Read more]



Journées du Patrimoine 2026 at the Hôtel de Sully: tour of the Duchess's apartments
For the 2026 Heritage Days, the Duchess’s apartments will open their doors in the Marais in an exceptional move on September 19 and 20. Discover the program! [Read more]



Heritage Days 2026 at the Temple du Marais in Paris: discover this little-known gem!
The Temple of the Marais opens its doors for Heritage Days, scheduled for the weekend of September 19–20, 2026. A chance to explore its architecture and its rich history. [Read more]



Discover Victor Hugo’s Paris home for free during the 2026 Heritage Days.
Every year, Heritage Days bring a wealth of cultural highlights to Paris and the Île-de-France region. And right in the heart of the capital, the Maison de Victor Hugo will open its doors free of charge this weekend, September 19–20, 2026. Here’s more information! [Read more]



Heritage Days 2026: Tour of the Hôtel de Ville — Paris City Hall, the program
For the 2026 Journées du Patrimoine, the City Hall of Paris will exceptionally throw open its doors for free, self-guided tours. Mark your calendars for Saturday, September 19 and Sunday, September 20, 2026 to explore the Mayor of Paris’s office, the City Hall library, the Council Chamber, and the ceremonial salons. Here’s the program. [Read more]



Heritage Days 2026: self-guided tour of the Forney Library – Hôtel de Sens
On the occasion of the 2026 Heritage Days in Paris, the Hôtel de Sens, home to the Forney Library, will open its doors to the public free of charge on Saturday 19 and Sunday 20 September 2026. [Read more]



Heritage Days 2026 in Paris: guided tours of Saint-Nicolas-du-Chardonnet Church
For the 2026 Heritage Days in Paris, head to the Left Bank to discover Saint-Nicolas du Chardonnet Church. The site’s treasures reveal why this house of worship remains one of the emblematic strongholds of active traditionalist Catholicism in Paris. See you on Saturday, September 19 and Sunday, September 20, 2026, in the 5th arrondissement to uncover its history. [Read more]



Immersion in the Heart of the Middle Ages at the Musée de Cluny for Paris’s 2026 Heritage Days
The Cluny Museum is set to take us into the heart of its medieval collections for Paris’s 2026 Heritage Days. Mark your calendars for the weekend of September 19–20, 2026 to explore the program! [Read more]



Exceptional free tour of the Panthéon for Heritage Days 2026 in Paris.
The Panthéon takes part in the 43rd Heritage Days: the monument will open its doors to the public free of charge on September 19 and 20. A great opportunity not to miss! [Read more]



Journées du Patrimoine 2026 à Paris : visit the prestigious Sorbonne University
For Heritage Days, the Sorbonne is staging a range of events around this historic and cultural landmark over the weekend of Saturday, September 19 and Sunday, September 20, 2026. [Read more]



Paris Heritage Days 2026: explore the history of the Sainte-Geneviève Library
For Heritage Days 2026 in Paris, the Sainte-Geneviève Library invites you to dive into its history. Discover the secrets of this treasure of the Latin Quarter this Sunday, September 20, 2026. [Read more]



Heritage Days 2026 in Paris: at the Collège de France, an exceptional lineup of tours.
For the 2026 Heritage Days in Paris, the Collège de France invites you to discover 2,000 years of history through guided tours this weekend, September 19–20, 2026. Here are the practical details and the programme for this new edition! [Read more]



Heritage Days 2026 in Paris: Lycée Henri IV will, exceptionally, open its doors to the public.
Henri IV High School opens its doors for Heritage Days this weekend, September 19–20, 2026, in Paris. It’s a chance to discover this iconic institution, listed as a historic monument, and its medieval treasures. [Read more]



Heritage Days 2026: Saint-Joseph-des-Carmes, between a Baroque dome and revolutionary history
The Church of Saint-Joseph-des-Carmes, in Paris’s 6th arrondissement, unveils itself for Heritage Days on September 19–20, 2026. With its Baroque dome, revolutionary history, and the Martyrs’ Crypt, the visit promises an astonishing journey into the past. [Read more]



Heritage Days 2026 at the Paris School of Mines and its museum, housed in the Hôtel de Vendôme
On the occasion of the 43rd edition of Heritage Days, the Mines Paris – PSL engineering school invites the curious to discover its campus, housed in the Hôtel de Vendôme, as well as its Mineralogy Museum, on Saturday, September 19, 2026. [Read more]



European Heritage Days 2026 at Saint-Germain-des-Prés Church
As part of Heritage Days, the Saint‑Germain‑des‑Prés Church opens its doors for guided tours of the building on 19 and 20 September 2026. Read on for the program of this landmark on Boulevard Saint‑Germain. [Read more]



Heritage Days 2026 in Paris: rediscover the École des Beaux-Arts
L'école des Beaux-Arts de Paris invites the public to explore Heritage Days. Join us on 19 and 20 September 2026 to discover the program of the 43rd edition housed within this sublime building. A treat for art lovers! [Read more]



Heritage Days 2026 at Maison Saint-Sulpice: visit this former seminary in Paris
On the occasion of Heritage Days, the Maison Saint-Sulpice in Paris opens its doors for a special visit on Saturday, September 19, 2026. Step into the history of this former 17th‑century seminary, wander its tranquil gardens, and discover its pivotal role in Paris’s religious and cultural life! [Read more]



Heritage Days 2026: Visit the Senate — Luxembourg Palace in Paris
The Senate is taking part in Paris’s 2026 Heritage Days edition. Take advantage of the weekend of September 19–20 to explore the Palais du Luxembourg, the Petit Luxembourg, and the greenhouses of the Jardin du Luxembourg. An exceptional, must-see opening! [Read more]



Heritage Days 2026: guided tours and an escape game at the Paris Faculty of Pharmacy
Are you passionate about science and medicine? Don’t miss the chance to visit the Faculty of Pharmacy this Saturday, September 19, 2026, as part of Heritage Days. [Read more]



Heritage Days 2026 at Saint-Sulpice Church in Paris, one of the Left Bank’s treasures
For Heritage Days 2026 in Paris, Saint-Sulpice Church invites visitors to uncover its secrets through special tours on Saturday, September 19 and Sunday, September 20, 2026. [Read more]



Heritage Days 2026: Saint-Pierre-du-Gros-Caillou Church, a little-known story at the foot of the Eiffel Tower
A stone's throw from the Eiffel Tower, the Saint-Pierre-du-Gros-Caillou church opens its doors for Heritage Days on September 19–20, 2026. A visit to discover the history of this 7th‑arrondissement church and the little-known heritage of the Gros-Caillou quarter. [Read more]



Heritage Days 2026: The Romanian Embassy opens its doors for a visit
The Hôtel de Béhague, home to the Romanian Embassy in Paris, will open its doors to curious visitors on Saturday, September 19, 2026, to mark the new edition of Heritage Days. [Read more]



A contemporary art exhibition at the Russian Orthodox Cultural Center for Paris’s 2026 Heritage Days
You’ll recognize it by its landmark—the cathedral with golden domes that overlooks the Seine. The Russian Orthodox cultural and spiritual center invites you to the 2026 Heritage Days with a special program slated for the weekend of September 19–20. [Read more]



An interactive trail, hands-on workshop and tours of the École Militaire in Paris for Heritage Days
L’École Militaire in Paris opens its doors to the public in an exceptional manner for the 43rd edition of the Heritage Days, this weekend of September 19–20, 2026. This year, a full lineup centered on the Marquise de Pompadour awaits: here’s what’s in the works. [Read more]



Heritage Days 2026: The Hôtel de Noirmoutier, residence of the Prefect of Île-de-France, opens its doors.
Exceptionally, on the occasion of the 2026 Heritage Days, the Prefect of Île-de-France will open the doors to his official residence, the Hôtel de Noirmoutier, on Saturday, 19 September. Discover the program. [Read more]



Journées du patrimoine 2026 à Paris : self-guided tour of the Hôtel d'Avaray, residence of the Dutch ambassador
The Heritage Days 2026 are fast approaching! This year, come and discover historic monuments, cultural venues, and institutions that are usually closed to the public from September 19 to 20. This includes the Hôtel d'Avaray, a stunning townhouse in Paris's 7th arrondissement. Note that booking is mandatory. [Read more]



Heritage Days 2026: a tour of the Paris Foreign Missions Seminary and its museum
The 43rd edition of Heritage Days will unfold over the weekend of September 19–20, 2026, in Paris and the Île-de-France region. It offers a chance to discover the Séminaire des Missions Étrangères and its hidden museum. [Read more]



For Heritage Days 2026, head to the Quai d'Orsay, the Ministry of Foreign Affairs, in Paris.
What if, for Paris Heritage Days, we could experience visits like no other? The Ministry of Europe and Foreign Affairs is throwing open its doors to unveil an unprecedented program during the weekend of September 19 and 20, 2026. [Read more]



Heritage Days 2026 at the Army Museum – Hôtel des Invalides: schedule
Heritage Days come to the Hôtel des Invalides on September 19 and 20, 2026! Not only will the Army Museum be free for both days, but there will also be exclusive tours and a host of workshops for history enthusiasts. [Read more]



Heritage Days 2026 at the Hôtel de Salm, Grand Chancellery of the Légion d’Honneur, and museum
For the 2026 Heritage Days, why not visit the Grand Chancellery? On Saturday, September 19 and Sunday, September 20, 2026, the Hôtel de Salm, Grand Chancellery of the Légion d’honneur, opens its doors for a special tour as part of this 43rd edition. [Read more]



Heritage Days 2026: Tour of the National Assembly, registration required
On the occasion of Heritage Days in Paris, the National Assembly will open its doors on Saturday, 19 and Sunday, 20 September 2026. On the program: self-guided tours of the Palais Bourbon and the Hôtel de Lassay. Note: these tours are available by registration only. [Read more]



Heritage Days 2026: The American Church in Paris invites you to step inside
For Heritage Days, the American Church in Paris invites curious visitors to explore the church through guided tours on Saturday, September 19 and Sunday, September 20, 2026. [Read more]



Heritage Days 2026 in Paris: visit the iconic Arc de Triomphe for free
For the 43rd edition of Heritage Days in Paris, the Arc de Triomphe will open its doors to you free of charge! Join us on Saturday, September 19 and Sunday, September 20, 2026 for a unique immersion into the history of this iconic monument at the heart of the capital. [Read more]



Heritage Days 2026: Self-guided tour of Chaptal High School in Paris
A fresh, 43rd edition of Heritage Days on Saturday, September 19 and Sunday, September 20, 2026! And why not take the opportunity to step through the doors of Chaptal High School, tucked in the 8th arrondissement of Paris? [Read more]



Heritage Days 2026: visit the unmissable Madeleine Church in Paris
It stands proudly on its square in the 8th arrondissement: the Madeleine Church invites you to special tours during Heritage Days, on September 19 and 20, 2026. [Read more]



Heritage Days 2026 at the Pharmacy Museum: a guided tour of the National Order’s headquarters
If you’re looking to discover a hidden museum in the capital, join a guided tour during Heritage Days 2026 at the National Order of Pharmacists’ headquarters and its stunning architecture. See you on September 19 and 20. [Read more]



Family-friendly tour and game at the Grand Palais for Paris' 2026 Heritage Days
The Grand Palais invites us to mark our calendars for Heritage Days 2026, set for the weekend of September 19–20, 2026. Here’s the lineup planned for the occasion. [Read more]



This 17th‑arrondissement Paris townhouse is opening its doors exceptionally for Heritage Days 2026.
L’Hôtel Pereire, the home of the Simone and Cino Del Duca Foundation – Institute of France, opens its doors for Heritage Days 2026. On 19 and 20 September, dive into Parisian heritage and explore this historic building, which houses a fine collection of photographs, videos and archives. An opportunity not to be missed in Paris! [Read more]



Heritage Days 2026: the program at Saint-Philippe du Roule Church in Paris
On the occasion of the 43rd edition of Heritage Days in Paris, the city’s churches reveal their treasures! Save the weekend of September 19–20, 2026 to discover the program at Saint-Philippe du Roule Church. [Read more]



Heritage Days 2026 at the Expiatory Chapel in Paris: tracing Louis XVI and Marie-Antoinette!
Heritage Days are coming to Paris the weekend of September 19–20, 2026. On this occasion, La Chapelle expiatoire, a monument still too little known in the heart of the capital, will reveal its secrets to you. [Read more]



Heritage Days 2026: explore the magnificent Hôtel de la Marine in Paris
For the 43rd edition of Heritage Days, the Hôtel de la Marine in Paris will throw open its doors on Saturday, 19 and Sunday, 20 September 2026. A chance to discover this iconic landmark on the Place de la Concorde. [Read more]



Journées du Patrimoine 2026: The School of Jewelry Arts opens the Hôtel de Mercy-Argenteau in Paris
The School of Jewelry Arts opens the doors of the Hôtel de Mercy-Argenteau in Paris for Heritage Days on September 19–20, 2026. In its first participation, the venue will offer a range of activities focused on jewelry, craftsmanship, and this remarkable townhouse. [Read more]



Heritage Days 2026: tour of the construction site at the Church of the Holy Trinity in Paris
The Church of the Holy Trinity opens its doors for Heritage Days on Sunday, September 20, 2026. On the agenda: a tour of the church, which is currently undergoing restoration. [Read more]



Heritage Days 2026: visit the Notre-Dame-de-Lorette Church in Paris
Heritage Days are back in Paris on Saturday, September 19 and Sunday, September 20, 2026: it’s a chance to discover some of the city’s historic gems, notably the Notre-Dame-de-Lorette church. [Read more]



Heritage Days 2026 at Hôtel Gouthière – Hector Berlioz Conservatory, in Paris
The European Heritage Days 2026, on September 19 and 20, will lift the veil on secret and little-known spots in Paris, such as the elegant Hôtel Gouthière, an 18th-century pavilion designed by the royal chaser-gilder Pierre Gouthière, now transformed into the Hector Berlioz Conservatory. [Read more]



Heritage Days 2026: visit Saint-Laurent Church in Paris
For Heritage Days 2026 in Paris, head to Saint-Laurent Church to discover this flamboyant Gothic masterpiece right in the heart of the capital. The program includes guided tours of the building on Saturday, 19 and Sunday, 20 September 2026. [Read more]



Heritage Days 2026 at Saint-Vincent-de-Paul Church in Paris, free guided tours.
On the occasion of the 43rd edition of Heritage Days, Saint-Vincent-De-Paul Church welcomes visitors for guided, free tours on Sunday, September 20, 2026. [Read more]



Heritage Days 2026: on the hunt for Saint-Louis Hospital and its treasures
The Heritage Days in Paris invite you to discover the treasures of Saint-Louis Hospital, from its striking plaster-cast museum to its breathtaking chapel. Here’s what awaits you for the weekend of September 19–20, 2026. [Read more]



Heritage Days 2026: visit Paris's Bourse du Travail
Discover the Bourse du Travail in Paris through guided tours during Heritage Days 2026, on September 19 and 20. [Read more]



Heritage Days 2026 at Saint-Marguerite Church: the program
For Heritage Days 2026, the Sainte-Marguerite Church, a discreet church in the 11th arrondissement, invites you to discover the treasures it holds! Join us on September 19 and 20 to explore this jewel of classical architecture. [Read more]



Heritage Days 2026: Guided tours at Voltaire High School in Paris
On the occasion of Heritage Days, Voltaire High School will open its doors free of charge for guided tours on Saturday, September 19, 2026. [Read more]



Heritage Days 2026 at Paris's Gare de Lyon: go behind the scenes of its restoration
For Heritage Days in Paris, Gare de Lyon invites you to explore the secrets of its restoration during an exceptional weekend on September 19, 2026. [Read more]



Heritage Days 2026 at the Pitié-Salpêtrière, France's largest hospital, and its chapel.
For Heritage Days, France’s largest hospital is swinging its doors open to you! La Pitié-Salpêtrière Hospital welcomes visitors for the weekend of September 19–20, 2026, with an exceptional program. [Read more]



Heritage Days 2026 in the gardens of Paris's Broca Hospital: the program
Heritage Days invites you to the weekend of September 19–20, 2026 for its 43rd edition. In Paris, it’s a chance to discover the secrets of Hôpital Broca, located in the 13th arrondissement of the capital. [Read more]



Heritage Days 2026 at Austerlitz Station: go behind the scenes on an exclusive tour!
Choo choo! Head to Austerlitz station for Heritage Days 2026 to discover a nice lineup, on September 19 and 20. Note: registration is required! [Read more]



Heritage Days 2026 in Paris: on the quest for the White Queen's Castle
As part of Paris Heritage Days 2026, why not explore an extraordinary residence in the very heart of the capital? In the 13th arrondissement, the Château de la Reine Blanche unlocks its secrets with a special program for the weekend of September 19–20, 2026. [Read more]



Heritage Days 2026 at Hôtel de Massa, the jewel in the crown of the Society of Men of Letters
Heritage Days are back in Paris. This Saturday, September 19, 2026, the Hôtel de Massa, home to the Society of the Men of Letters, invites us to visit this historic monument. [Read more]



Journées du Patrimoine 2026 à l'Observatoire de Paris : free guided tour of the historic building
The Paris Observatory swings into the rhythm of European Heritage Days 2026, inviting the public to a free guided tour on Sunday, September 20. [Read more]



Heritage Days 2026 in Paris: a tour of Cochin Hospital and the Port-Royal Cloister
Take advantage of Heritage Days on September 19, 2026, to roam the Port-Royal Cloister, in the heart of Hôpital Cochin. An edition packed with discoveries awaits! [Read more]



Heritage Days 2026 at the Maison du Fontainier, a deep dive into Paris's water history
Are you ready to dive into Paris’s history during Heritage Days 2026? What better way to do it than a tour of the Maison du Fontainier, a cornerstone in the capital’s water history. Join us this weekend, September 19–20, 2026. [Read more]



The renowned Salle Wagram opens its doors to the public for Heritage Days 2026.
The Wagram Hall opens its doors for Heritage Days 2026 on Saturday, September 19, in what promises to be a rare opportunity to discover this iconic venue in Paris’s 17th arrondissement, officially listed as a historic monument. [Read more]



Uncover the mysteries of the Grande Loge de France for Heritage Days 2026!
The Journées du Patrimoine invites you to an exceptional guided tour of the Grand Lodge of France in Paris on 19 and 20 September 2026. Dive into the heart of this enigmatic institution and discover its fascinating history, its sumptuous architecture, and the rites of Freemasonry! [Read more]



Heritage Days 2026 at Citéco, Paris's City of the Economy, guided tour of the Hôtel Gaillard
On the occasion of the 43rd Heritage Days, Citéco - the City of the Economy opens its doors to curious visitors this Saturday, September 19 and Sunday, September 20, 2026. It’s a chance to explore the treasures housed inside this remarkable museum, right in the heart of Hôtel Gaillard! [Read more]



Heritage Days 2026 at Sacré‑Cœur in Paris: the Montmartre Basilica program
Perched atop Montmartre, the Basilica of the Sacré-Cœur is one of Paris’s iconic monuments. And precisely for Heritage Days, this unusual church will reveal its secrets to us over the weekend of September 19-20, 2026. [Read more]



Journées du Patrimoine 2026 à Paris: Le Regard de la Lanterne, a little-known venue in the 19th arrondissement
Looking to get off the beaten path during the Journées du Patrimoine? How about discovering the Lanterne—an intimate, secret spot in Paris’s 19th arrondissement? Here’s what’s waiting for you on Saturday, September 19, 2026. [Read more]



Heritage Days 2026 in Paris: the Saint-Serge de Radonège Orthodox Church, an unusual venue
The Saint-Serge de Radonège Church, one of the most unconventional gems in Paris's 19th arrondissement, invites you to uncover its secrets for Heritage Days, this weekend of September 19–20, 2026. [Read more]



An unusual tour of Père Lachaise awaits you during Paris's 2026 Heritage Days.
For Heritage Days 2026, Père-Lachaise Cemetery invites you to wander through its grounds and meet the notable figures who call it home. Join us on Saturday, September 19, for a one-of-a-kind stroll at the heart of Paris’s famous cemetery. [Read more]
And just a few kilometers from Paris, in the Île-de-France region:



The Russon Mill, a remarkable rural relic to discover during the 2026 Heritage Days.
In Bussy-Saint-Georges, explore a restored historic water mill and its story during the 2026 Heritage Days in Île-de-France, coming up on the weekend of September 19–20, 2026. [Read more]



Heritage Days 2026: a tour and concert at Rosa Bonheur’s Château
The Rosa Bonheur Castle in Thomery is taking part in the latest edition of Heritage Days. Discover the schedule planned for 19 and 20 September 2026. [Read more]



The Château de Vaux-le-Vicomte opens its doors for Heritage Days 2026.
Take advantage of this new edition of Heritage Days to visit the Château de Vaux-le-Vicomte. On 19 and 20 September 2026, the monument will present a very special program... [Read more]



Heritage Days 2026: this offbeat dairy in the Paris region is opening its doors to you!
On the occasion of the 2026 Heritage Days, the Avon Dairy opens its doors in Seine-et-Marne on Saturday, September 19. Discover the history and distinctive features of this unusual site in Île-de-France's heritage. [Read more]



Heritage Days 2026: discover this former 17th-century convent in the Paris region.
On 19 and 20 September 2026, the Carmelite Convent in Avon will open its doors for Heritage Days. Discover this historic site in Seine-et-Marne. [Read more]



Heritage Days 2026 at the Château de Fontainebleau (77): a lively weekend at the château
The Château de Fontainebleau will take part in the 2026 Heritage Days, on September 19–20. Here’s the program for this magnificent château in Seine-et-Marne. [Read more]



Heritage Days 2026: guided tours of the dungeons at the Château de Nemours (77)
For the Heritage Days, the Nemours château-museum invites curious visitors to discover its tours and activities on September 19 and 20, 2026. On the program are exclusive tours of the basement levels of the Château de Nemours. [Read more]



Heritage Days 2026 at the Royal Château of Montceaux: a glimpse into the Château of the Three Queens
How about we head off to discover the ruins of the Royal Château of Montceaux? This historic site in Seine-et-Marne opens its doors for the Heritage Days weekend on September 19–20, 2026. [Read more]



Heritage Days 2026 at Brie-Comte-Robert Castle (77): weekend program
The Château de Brie-Comte-Robert opens its doors for the 43rd edition of Heritage Days. Here is the schedule for this weekend of September 19–20, 2026. [Read more]



This vault is the last remnant of a former medieval hospital, and it will be unveiled for Heritage Days 2026.
Right in the heart of Provins' medieval city, a rich heritage awaits that's well worth a detour. For Heritage Days 2026, visitors will have the chance to discover the Caveau du Saint-Esprit this weekend, September 19–20, 2026. [Read more]



Heritage Days 2026 at Château de Bourron (77): discover the "little Fontainebleau"
In Seine-et-Marne, Château de Bourron invites visitors to a special Heritage Days program on Sunday, September 20, 2026. [Read more]



Heritage Days 2026: the program at the Château de Champs-sur-Marne (77)
For the 43rd Heritage Days, the Château de Champs-sur-Marne is unveiling an artistic program to be explored on the weekend of September 19–20, 2026. [Read more]



Heritage Days 2026 at the Château de Saint-Germain-en-Laye - National Archaeology Museum (78)
The Château de Saint-Germain-en-Laye is taking part in the 2026 Heritage Days. On the schedule for Saturday the 19th and Sunday the 20th of September are guided tours of the château and the National Archaeology Museum, along with many other surprises, offering a unique immersion into the heart of History. [Read more]



Heritage Days 2026: Free guided tours of the King's Kitchen Garden in Versailles (78)
For the 2026 Heritage Days, we’re heading to the Potager du Roi at the Château de Versailles to enjoy two free days in an enchanting setting, on September 19 and 20. On the program: guided tours and activities for kids and adults alike! [Read more]



Heritage Days 2026: explore the Ors Estate Nature Reserve and its ruins.
In Châteaufort, in the Yvelines, Domaine d’Ors blends historic heritage with preserved nature along the Mérantaise. The 2026 Heritage Days offer a chance to discover the estate’s history and the remains of a property shaped by centuries of transformation. [Read more]



Set out to conquer the Moulin d'Ors for Heritage Days 2026
For the 2026 Heritage Days, the spotlight is on Moulin d’Ors in Châteaufort, in Yvelines. A former wheat mill in the Chevreuse valley, it alone bears witness to centuries of local history and hydraulic heritage. [Read more]



Heritage Days 2026: Exploring the Château de Rambouillet (78)
In September, Heritage Days are back: discover the program lined up at the Château de Rambouillet (78) on September 19 and 20, 2026. [Read more]



Escape game and tour of the Château de Plaisir for the 2026 Heritage Days in the Yvelines
And what if, for Heritage Days 2026, we set out to discover the castles of Île-de-France? In Yvelines, Château de Plaisir enters the fray! Discover the program scheduled for this weekend, September 19–20, 2026. [Read more]



At the Château de la Verrière, exceptional tours for Heritage Days 2026
On the occasion of Heritage Days 2026, the Château de La Verrière in Yvelines reveals a heritage shaped since the 16th century, blending a lordly residence, historic gardens and astonishing interior décor. [Read more]



Heritage Days 2026: guided tours of the Skit of the Holy Spirit (78)
The Holy Spirit Skete, an Orthodox monastery tucked away in the forest of Mesnil-Saint-Denis, opens its doors for Heritage Days 2026 on September 19. A rare opportunity not to be missed to admire its frescoes and its distinctive architecture. [Read more]



Heritage Days 2026 in Versailles (78): guided tours of the Montansier Theatre
As part of the 43rd edition of Heritage Days, the Montansier Theatre, an 18th‑century treasure in Versailles, welcomes visitors with guided tours on the weekend of September 19–20, 2026. [Read more]



Heritage Days 2026 at the Maison des Italiens in Versailles: a little-known monument in the Yvelines (78)
Want to uncover the secrets of France’s heritage without spending a dime? On September 19 and 20, 2026, the European Heritage Days will throw open the doors to the country’s most unusual and iconic sites. This year, in Yvelines (78), treat yourself to the Maison des Italiens in Versailles, an elegant private mansion listed as a Historic Monument. [Read more]



Explore Bazemont's lordly fief during Heritage Days 2026 in the Paris region.
Once a lordly estate, now a town hall, Bazemont Castle opens its doors on September 19 and 20, 2026 for Heritage Days. [Read more]



Heritage Days 2026 at the Datcha — Ivan Turgenev Museum, the writer’s retreat in Yvelines (78)
The European Heritage Days 2026 are your VIP pass to the behind-the-scenes of history, coming up on September 19 and 20. In Yvelines (78), we head to the Datcha – the Ivan Tourguéniev Museum, a charming Swiss-Russian-style chalet that once belonged to the writer, tucked away in the Bougival woods. [Read more]



Heritage Days 2026: guided tour and vintage cars at Château de Maisons-Laffitte (78)
On the occasion of the 2026 Heritage Days, come and discover the magnificent Château de Maisons-Laffitte, built for King Louis XIV, on Saturday, 19 and Sunday, 20 September 2026, in Yvelines. A wonderful opportunity to explore this gem of Île-de-France heritage! [Read more]



Heritage Days 2026: visit the André Derain House, the workshop of a Fauvist master (78)
Let your eyes wander and your footsteps stray for Heritage Days on Sunday, September 20, 2026. In Chambourcy, in the Yvelines (75), the André Derain House-Museum reveals the Fauvist master's studio and other flamboyant keepsakes from the 20th century. [Read more]



Heritage Days 2026 at the Versailles City Hall (78): free tours of the landmark.
The Heritage Days 2026 invite you to see Versailles in a new light. On Sunday, September 20, 2026, uncover the secrets of the royal city with an exclusive tour of the Hôtel de Ville, a historic monument and former estate of one of Louis XIV's daughters. [Read more]



Heritage Days 2026 at Château de Breteuil (Yvelines, 78), at the heart of Perrault’s fairy tales
Le Château de Breteuil, the place that draws us into the heart of Perrault's tales, will take part in Heritage Days on the weekend of September 19–20, 2026. Here’s the programme, but note: admission remains payable! [Read more]



Heritage Days 2026: Immerse yourself in Dumas's universe at the Château de Monte-Cristo (78)
The Château de Monte-Cristo, Alexandre Dumas’s home, will take part in the European Heritage Days on 19 and 20 September 2026. To mark the occasion, admission to the château will be discounted. [Read more]



A remarkable visit to the Château de la Celle-Saint-Cloud for Heritage Days 2026
In the heart of the Yvelines, the Château de la Celle-Saint-Cloud, owned by the Ministry of Europe and Foreign Affairs, is exceptionally opening its doors for Heritage Days 2026 on the weekend of September 19–20: here’s the programme! [Read more]



Heritage Days 2026: Discover the stunning Château de Neuville (78) during guided tours
During the 2026 Heritage Days, the Château de Neuville, located in Gambais in the Yvelines (78), opens its doors for exceptional guided tours on Sunday, September 20. If you’re after a cultural escape, this is the perfect plan you’ve been waiting for! Ready to discover this treasure of Yvelines heritage? [Read more]



Heritage Days 2026 at Jean Cocteau's House in Essonne (91): program
Heritage Days 2026 kick off this weekend, September 19–20, 2026, in Paris and the Île-de-France region. In Milly-la-Forêt, Essonne, the Maison Jean Cocteau invites you to a rich program of tours. [Read more]



Special openings and a performance at Domaine de Chamarande for Heritage Days 2026
Looking for a great family outing during Heritage Days 2026? Then head to the Domaine de Chamarande in Essonne: the château and its grounds reveal their schedule for the weekend of September 19–20, 2026. [Read more]



Heritage Days 2026: The Nymphée Nymphée, a shell grotto in Viry-Châtillon (91)
Heritage Days are back for the weekend of September 19–20, 2026 in Paris and the Île-de-France region. It’s a chance to explore the Nymphée Nymphée, a mysterious shell-covered grotto waiting for you in Viry-Châtillon, Essonne. An offbeat discovery awaits! [Read more]



Heritage Days 2026 at Villeconin's medieval castle (91): the program!
The Château de Villeconin, located in Essonne, invites us to make the most of Heritage Days by highlighting its treasures through a weekend program of tours on 19 and 20 September 2026. [Read more]



Bierville Castle to Open Its Doors for Heritage Days 2026
The European Heritage Days return on 19 and 20 September 2026. On this occasion, Château de Bierville, in Boissy-la-Rivière, Essonne, will open its doors to visitors for an exceptional showing. A rare opportunity to discover a site steeped in history, closely tied to Île-de-France heritage and the social commitments of the 20th century. [Read more]



In Étampes, the Guinette Tower marks its inauguration during the 2026 Heritage Days.
After several years of restoration, the Guinette Tower is ready to welcome the public again on September 19 and 20, 2026, for Heritage Days. An event that will shine a spotlight on one of the principal witnesses to Étampes' medieval history. [Read more]



Heritage Days 2026 at Trajan Tower (91): a tour of the ancient column of Méréville
Did you know that a Roman monument overlooks the Essonne? We’re taking advantage of Heritage Days on September 19 and 20, 2026 to discover Trajan’s Tower, this curiosity of the town of Méréville! [Read more]



Giant shows and games at the Château de Saint-Jean de Beauregard for Heritage Days
On the occasion of the 43rd edition of Heritage Days, Château Saint-Jean de Beauregard invites you to visit on September 19 and 20, 2026. As part of these discovery-focused days, guided tours of the castle and its gardens will be offered. [Read more]



Heritage Days 2026 at the Château and Courances Park (91): what’s on
Take advantage of the 2026 Heritage Days to discover a haven of peace: the Château and Parc de Courances, in Essonne (department 91), will open their doors on 19 and 20 September 2026 for paid guided tours. [Read more]



Montagu Castle in Essonne reveals its lineup for the 2026 European Heritage Days.
This Essonne treasure reveals its secrets for the 43rd edition of Heritage Days: Montagu Castle invites you to join in and unveils its program for the weekend of September 19–20, 2026. [Read more]



Treasure hunt and music at Victor Hugo's literary house for Heritage Days
Victor Hugo's literary house, in Bièvres, Essonne, will open its doors free to the public on September 19 and 20, 2026, for Heritage Days. [Read more]



Market, vintage cars and sheepdogs: Heritage Days 2026 at Mesnil-Voysin Castle
The Château de Mesnil-Voysin, situated in Bouray-sur-Juine, awaits you this weekend, September 19–20, 2026, for Heritage Days. Discover this special program. [Read more]



Heritage Days 2026: The Departmental Estate of Sceaux (92) unveils its program
On the occasion of the 2026 Heritage Days, the Sceaux Departmental Estate is offering free activities for the whole family, to be enjoyed on September 19 and 20. [Read more]



Head to the Belmondo Museum on the doorstep of Paris for Heritage Days 2026.
On the outskirts of Paris, the Paul Belmondo Museum opens its doors on 19 and 20 September 2026 for Heritage Days. Here’s the special program you can look forward to this weekend. [Read more]



The Meudon Observatory opens the doors to the heavens for Heritage Days 2026.
Aiming for the stars during Heritage Days! The Paris Observatory, Meudon site, opens its doors by reservation, with special tours on Saturday, September 19, 2026. [Read more]



Heritage Days 2026 at Domaine de la Reine Margot (92): the program
Heritage Days are also happening in Hauts-de-Seine. In Issy-les-Moulineaux, the Domaine de la Reine Margot unveils a special weekend program for September 19–20, 2026. [Read more]



Heritage Days 2026 at the Maison de Chateaubriand - Domaine de la Vallée-aux-Loups (92)
On the occasion of Heritage Days, the Departmental Estate of Vallée aux Loups welcomes you on Saturday, September 19 and Sunday, September 20, 2026, to discover the Maison de Chateaubriand and its hectares of greenery. [Read more]



A stroll through the glass towers of La Défense for the 2026 Heritage Days
Explore La Défense from a new angle with guided tours organized on Sunday, September 20, 2026 for Heritage Days. [Read more]



Heritage Days 2026: what’s on at Château des Tourelles in Bois-Colombes (92)
Heritage Days are just around the corner for the weekend of September 19–20, 2026, in Paris and Île-de-France. In Hauts-de-Seine, it’s time to rediscover the Château des Tourelles in Bois-Colombes. Check out the program! [Read more]



Heritage Days 2026 at Maison Ferrari (92): the Duchess of Galliera's legacy.
Heading to the Hauts-de-Seine for the 2026 Heritage Days, and to Maison Ferrari in Clamart, built by the Duchess of Galliera, which today houses a retirement home, in a sublime setting. [Read more]



Heritage Days 2026: a guided tour of the Maison des Jardies in Sèvres
The House of Jardies, in Sèvres, former home of Rousseau and Gambetta, invites you to discover its history and its secrets for Heritage Days 2026. Guided tours will be available on September 19 and 20. [Read more]



(Re)discover the necropolis of the kings of France and its medieval garden during Heritage Days 2026.
The Basilica of Saint-Denis, renowned for housing France’s royal necropolis, unveils a rich lineup for the 2026 Heritage Days. An organ concert, activities, and even special tours of its medieval garden — here’s what to expect on September 19 and 20, 2026. [Read more]



Heritage Days 2026 at Château d'Ormesson: a stroll through a temple of literature (94)
The Château d'Ormesson offers guided tours on Saturday, September 19 and Sunday, September 20, 2026, during the 43rd Heritage Days. A family residence dating from the 16th century, this château is an integral part of the town of Ormesson-sur-Marne and its heritage. [Read more]



Heritage Days 2026: Guided tours to discover the Château de Vincennes (94)
For Heritage Days 2026, the Château de Vincennes, home to the tallest keep in Europe, awaits you for a delightful cultural discovery of this medieval monument this weekend of September 19–20, 2026. [Read more]



Heritage Days 2026: tours of Maubuisson Abbey (Val-d'Oise, 95) — the program
For Heritage Days, the Maubuisson Abbey opens its doors to visitors on Saturday, September 19 and Sunday, September 20, 2026. Check out the program! [Read more]



Take a tour of Dr. Gachet’s house during Heritage Days 2026.
September 19 and 20, 2026, Heritage Days invite you to discover Dr. Gachet’s House in Auvers-sur-Oise. This historic site was a haven for leading artists, including Vincent van Gogh, Paul Cézanne, and Camille Pissarro. [Read more]



This endangered castle with distinctive architecture opens to visitors for Heritage Days 2026.
Time-worn yet at the heart of a large restoration project, the Château de Vigny opens its doors on 19 and 20 September 2026 for Heritage Days. A chance to discover one of the most distinctive monuments in Val-d'Oise. [Read more]



Heritage Days 2026 at the Troglodyte Church of the Annunciation, an unusual stopover in the 95
On 19 and 20 September 2026, the European Heritage Days uncover the hidden treasures of Paris and Île-de-France. What's on the agenda in Val-d'Oise (95)? A gripping dive into history, right to the heart of the rock, to the region's only troglodyte church, tucked away in Haute-Isle. [Read more]



Theatrical tour and new exhibition for Heritage Days 2026 at Château d'Écouen
The Château d'Ecouen and its Renaissance Museum participate in Heritage Days on Saturday, September 19 and Sunday, September 20, 2026. Take advantage of free guided tours for visitors of all ages. [Read more]



Period costumes and a bread oven: Heritage Days program at Fort de Cormeilles-en-Parisis
Visit Fort de Cormeilles during the Heritage Days on Sunday, September 20, 2026. This former military fort, now owned by the Île-de-France Regional Green Spaces Agency, opens its doors to families and history buffs, free of charge, of course! [Read more]



Heritage Days 2026: uncover the secrets of the Villarceaux estate in Val-d'Oise (95)
Are you near the Vexin Français Regional Natural Park on September 19 and 20, 2026? Take advantage of Heritage Days to visit the Villarceaux estate in Chaussy. [Read more]



Heritage Days 2026: discover the Beaumont Palace cinema (95), listed as a Historic Monument
On the occasion of Heritage Days, this Saturday, September 19 and Sunday, September 20, 2026, the best-known cinema in Val-d'Oise reveals a different side with a special program! [Read more]



Here is Île-de-France’s sole troglodyte castle, open to visitors for the 2026 Heritage Days.
On the occasion of the Heritage Days on 19 and 20 September 2026, discover the Château de la Roche-Guyon, a unique landmark in Île-de-France, nestled in the Val d’Oise. [Read more]



Hidden beneath an old convent, this Pontoise crypt will be exceptionally open to visitors for the 2026 Heritage Days.
In Pontoise, the crypt of the English Benedictine Convent will unusually open its doors on September 19 and 20, 2026. Discover this little-known landmark of Val-d'Oise heritage and its history. [Read more]



Heritage Days 2026 at Beaumont-sur-Oise Castle (95), the program
Beaumont-sur-Oise Castle opens up for Heritage Days 2026. A relic of the Middle Ages, the castle’s keep dominates the banks of the Oise and offers a splendid view of Saint-Laurent Church, to be discovered on September 19 and 20. [Read more]



Heritage Days 2026: free Van Gogh–themed tour at the Château d'Auvers-sur-Oise (Val-d'Oise)
The Château d'Auvers-sur-Oise invites you to the weekend of September 19–20, 2026, for the 43rd edition of Heritage Days. Discover the program waiting for you this year. [Read more]



Heritage Days 2026: exclusive tours of Royaumont Abbey (95)
For the 2026 Heritage Days, on September 19 and 20, the Royaumont estate opens its doors for guided tours of the Abbey and its gardens. [Read more]
Our beautiful Île-de-France region is home to some real treasures that you should not hesitate to discover! Do you already know all these historic sites? Then take a look at our program of fashion temples and parks and gardens.
Heritage Days 2026 in the temples of fashion, luxury and beauty
Heritage Days 2026 in Paris take place this weekend, September 19–20, 2026. To mark the occasion, we invite you to discover Paris's fashion temples that are opening their doors. The secrets of the couture houses and flagship department stores are waiting for you! [Read more]
Heritage Days 2026 in the parks and gardens of Paris and Île-de-France
For this new edition of Heritage Days, we invite you to discover the parks and gardens of Paris and Île-de-France. Guided tours and a generous breath of fresh air — a pleasant stroll awaits you this weekend, September 19–20, 2026. [Read more]
Dates and Opening Time
From September 19, 2026 to September 20, 2026
Prices
Free