Kick-off for the Heritage Days. This weekend of September 19–20, 2026, Paris and the entire Île-de-France will unveil its finest treasures and invite us to rediscover our heritage in a whole new light. Each year, museums, monuments, castles, and even venues rarely open to the public open their doors to grant us a program rich in unconventional activities, generally free visits and new experiences, including for children. A must-attend for the curious and the passionate!
If you've woken up a little late this year and missed out on booking, don't worry: many sublime venues are offering their programs without prior registration. Perfect for those who decide to take advantage of this event on a whim! So if you'd like to prepare your last-minute program, we've put together a list of spots offering free admission. There's no excuse for missing out on the Journées du Patrimoine in Paris and the Ile-de-France region.
Don't hesitate to consult this guide regularly to prepare your program without any headaches!



Journées du Patrimoine 2026: Women in the spotlight at the Espace Monte-Cristo in Paris
Espace Monte-Cristo is set to welcome visitors on September 19 and 20, 2026, offering a glimpse of its special, free activities during Heritage Days. [Read more]



Heritage Days 2026: Activities at Paris’s arrondissement town halls
The Parisian arrondissement town halls are throwing open their doors on September 19 and 20, 2026: discover the activities and tours planned for Heritage Days. [Read more]



The Sewer Museum opens its doors for free during Heritage Days 2026.
The Paris Sewer Museum is taking part in the new edition of Heritage Days! Meet on Saturday, September 19 and Sunday, September 20, 2026 for unconventional tours into the depths of Paris. [Read more]



Heritage Days 2026: organ recital at Saint-Jean-de-Montmartre Church in Paris
Les Journées du Patrimoine are the perfect chance to uncover the treasures tucked away in the museums, buildings and monuments of our beautiful capital. Head to the Église Saint-Jean-l'Évangéliste-de-Montmartre for an organ recital on Saturday, 19 September and Sunday, 20 September 2026! [Read more]



Journées du Patrimoine 2026 à Paris : promenades à la découverte du Jardin des Tuileries
For Heritage Days in Paris, the Jardin des Tuileries invites you to dive into its history. "guided walks" await you on Saturday 19 and Sunday 20 September 2026. Enjoy this stroll at the heart of Paris. [Read more]



Heritage Days 2026: the Bastille Design Center puts its past in the spotlight and champions the artists of tomorrow
You may have already visited the Bastille Design Center during a trade show or event. But are you familiar with its history? Discover it during the weekend of September 19–20, 2026, as part of Heritage Days. [Read more]



Heritage Days 2026: tour of the Saint-Gervais-Saint-Protais Church
The Saint-Gervais-Saint-Protais Church in Paris invites visitors to the 2026 Heritage Days to discover the venue on Saturday, September 19 and Sunday, September 20, through a series of engaging tours. [Read more]



Heritage Days 2026 at the Institut de France in Paris: a special opening
The Institut de France is taking part in the 43rd edition of Heritage Days, held on Saturday, September 19, and Sunday, September 20, 2026. It’s an opportunity to discover one of Paris’s most overlooked institutions, steeped in history and tradition, during exclusive tours. Here is the schedule planned for these open-house days. [Read more]



Heritage Days 2026: a family-friendly treasure hunt at the Petit Palais in Paris
On the occasion of the 2026 Heritage Days in Paris, the Petit Palais unveils a special program for the weekend of September 19–20, 2026. Find out what awaits you there! [Read more]



Fashion know-how in the spotlight at 19M for Heritage Days 2026
The backstage of fashion opens its doors at 19M! The artisans and craftspeople reveal studios, techniques and know-how usually hidden from view for Heritage Days, on September 19 and 20, 2026. [Read more]



Heritage Days 2026: Investigating paranormal phenomena at the Institut Métapsychique International
Paranormal phenomena, parapsychology and the history of science are on the agenda at the International Metapsychical Institute for Heritage Days, September 19–20, 2026. In Paris, visitors can discover a unique venue that has been devoted for more than a century to the study of these unexplained experiences. [Read more]



In Paris, during the 2026 Heritage Days, discover the Maison d’Ourscamp, tucked away in the heart of the marsh.
For the 2026 Heritage Days in Paris, discover the Maison d'Ourscamp, one of the few remaining examples that blend medieval and Renaissance architecture in the city. Join us on Saturday, September 19 and Sunday, September 20, 2026 for a free family outing, highlighted by guided tours. [Read more]



Heritage Days 2026: uncover the secrets of Balzac's House in Paris
The bucolic Maison de Balzac invites you to free admission for Heritage Days, the weekend of September 19–20, 2026 in Paris. A chance to uncover this tucked-away address that drops you into the world of the renowned French writer. [Read more]



Heritage Days 2026 in Paris: Discover the Ministry of Agriculture at the Hôtel de Villeroy
European Heritage Days return for the weekend of September 19–20, 2026 in Paris and the Île-de-France region. How about taking the opportunity to discover the Ministry of Agriculture and the magnificent Hôtel de Villeroy that houses it? [Read more]



Heritage Days 2026: the Sorbonne Chapel and Richelieu's Tomb in Paris
The Sorbonne’s famous dome is unusually open to visitors during Heritage Days on September 19 and 20, 2026. In the heart of the Latin Quarter, the Sorbonne Chapel reveals its classical architecture, its history, and the tomb of Cardinal Richelieu. [Read more]



European Heritage Days 2026: Guided tour of the Hôtel du Nord in Paris, the program
Heritage Days return across Île-de-France on Saturday, September 19 and Sunday, September 20, 2026. A chance to step through the doors of must-see venues, including the legendary Hôtel du Nord in Paris. Here’s more. [Read more]



Heritage Days 2026: discover Hôtel d'Heidelbach, Maison Guimet's Asian jewel box
Hôtel d'Heidelbach, now Maison Guimet, participates in Paris's Heritage Days with tours devoted to Asian arts, on September 19 and 20, 2026. An opportunity to discover this 16th-century townhouse, its Japanese garden, and its exceptional collections. [Read more]



Heritage Days 2026 in Paris: Rediscover the Tour Jean-Sans-Peur
We get a glimpse of the medieval world of the Tour Jean-Sans-Peur during Paris’s Heritage Days 2026, over the weekend of September 19–20, 2026. An opportunity to explore this remnant of the Dukes of Burgundy’s palace through a special program! [Read more]



Heritage Days 2026: Saint-Pierre-du-Gros-Caillou reveals its secrets in Paris' 7th arrondissement
In Paris’s 7th arrondissement, the Saint-Pierre-du-Gros-Caillou churchwill participate in Heritage Days on September 19–20, 2026. Its architecture, its history, and its proximity to the Eiffel Tower make it a compelling stop to discover another side of the neighborhood. [Read more]



Heritage Days 2026: a church in the 6th arrondissement shaped by the French Revolution
What lies behind the walls of Saint-Joseph-des-Carmes Church in the 6th arrondissement? The Heritage Days invite you to explore this historic Paris site and its religious heritage on September 19 and 20, 2026. [Read more]



Heritage Days 2026: Saint George's Anglican Church opens its doors in Paris
Want to discover a little-known corner of Paris? St George’s Anglican Church is taking part in Heritage Days with a special opening on September 19 and 20, 2026. A chance to explore a historic building just a stone’s throw from the Arc de Triomphe. [Read more]



Heritage Days 2026: A tour of the Saint-Georges Chapel in Paris
La Chapelle Saint-Georges opens to the public in Paris for Heritage Days, on 19 and 20 September 2026. A rare chance to explore its history, its architecture, and a discreet corner of Parisian heritage. [Read more]



Journées du Patrimoine 2026 à Paris : tour the legendary Arc de Triomphe for free, perched at the top of the Champs-Élysées
For the 43rd edition of the Journées du Patrimoine in Paris, the Arc de Triomphe will open its doors free of charge. Mark your calendars for Saturday, September 19 and Sunday, September 20, 2026, for an exceptional immersion into the history of this iconic monument that towers over the Champs-Élysées. [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: Weekend program at the Museum of Romantic Life
For the 2026 European Heritage Days in Paris, the Musée de la Vie romantique invites us to reconnect with Romantic Paris. Discover the special program lined up for this weekend of September 19–20, 2026. [Read more]



Journées du Patrimoine 2026 à Paris : découvrez l'Église Saint-Nicolas-du-Chardonnet
Heritage Days 2026 in Paris: Discover Saint-Nicolas-du-Chardonnet Church
For Paris’ Heritage Days 2026, head to the Left Bank to discover Saint-Nicolas du Chardonnet Church. Visitors will marvel at the treasures of this worship site, which today remains one of the emblematic strongholds of active traditionalist Catholicism in Paris. Join us the weekend of September 19–20, 2026 in the 5th arrondissement to uncover its history. [Read more]



European Heritage Days 2026: the Museum of the Liberation of Paris unveils its program
For the new edition of Heritage Days, the Museum of the Liberation of Paris — General Leclerc Museum — Jean Moulin Museum invites you to free tours and activities over the weekend of September 19–20, 2026. [Read more]



Heritage Days 2026 at the Paris Court of Auditors: weekend program
The Heritage Days are back in a big way: join us for the weekend of September 19–20, 2026, in Paris and the Île-de-France region. It’s a chance to uncover the secrets of the capital’s iconic institutions, including the Cour des Comptes (France’s Court of Audit), which is unveiling an impressive lineup of tours and activities. [Read more]



Free, exceptional Panthéon tour during Paris’ Heritage Days
The Panthéon is taking part in the 43rd European Heritage Days, offering free admission on September 19 and 20. Take advantage of this opportunity to visit Paris’s unmissable monument. [Read more]



Heritage Days 2026 at the Mobilier National in Paris: the programme
For European Heritage Days, the Gobelins Manufactory is offering an exclusive behind-the-scenes visit that puts exceptional craftsmanship in the spotlight on September 19 and 20, 2026. A great opportunity not to be missed! Here is the weekend’s schedule. [Read more]



Heritage Days 2026 at the Élysée Palace: the program
The European Heritage Days return on September 19–20, 2026, and they still have more surprises in store! Just a stone’s throw from the Presidential Palace, the Élysée House opens its doors for an inside look at the workings of power. [Read more]



Heritage Days 2026: A stroll through Cité Falguière, a hidden artistic treasure
Heritage Days 2026 unveil a hidden treasure: the Cité Falguière in Paris. Mark your calendars for September 19–20 for a unique voyage into the capital's artistic history during its 43rd edition. Discover the event program. [Read more]



Journées du Patrimoine 2026 à l'Institut Giacometti à Paris : le programme du week-end
L'Institut Giacometti invite les Parisiens et Franciliens, à l'occasion de la 43e édition des Journées du Patrimoine, à découvrir les lieux lors de visites les samedi 19 et dimanche 20 septembre 2026. De belles visites vous attendent. [Read more]



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



Heritage Days 2026 in Paris: family-friendly, hands-on workshops at the Musée des Arts et Métiers
The Musée des Arts et Métiers is taking part in Heritage Days on Saturday, 19 and Sunday, 20 September 2026, offering a free family-friendly visit and a range of activities. Discover the program! [Read more]



Heritage Days 2026 at Hôtel de Sully in Paris: Tour of the Duchess's Apartments
For the 2026 Heritage Days, the Duchess’s apartments will open their doors in the Marais for a rare occasion on September 19 and 20. Check out the weekend program! [Read more]



Journées du Patrimoine 2026 : un week-end à la découverte du Musée Curie à Paris
A l'occasion des 43e Journées du Patrimoine, le Musée Curie ouvre ses portes durant tout le week-end des 19 et 20 septembre 2026, pour une plongée dans l’histoire de la famille aux cinq Prix Nobel. Avis aux amateurs de patrimoine scientifique ! [Read more]



Heritage Days 2026: discover the iconic Sorbonne University in Paris
For Heritage Days, the Sorbonne is organizing a range of events around this historic and cultural landmark over the weekend of Saturday, September 19 and Sunday, September 20, 2026. Here’s the program for this edition. [Read more]



Heritage Days 2026: Explore the Hôtel de Noirmoutier, the residence of the Prefect of Île-de-France, this Saturday.
Exceptionally, on the occasion of the new edition of the Heritage Days, the Prefect of Île-de-France will open the doors to his official residence, the Hôtel de Noirmoutier, on Saturday, September 19, 2026. [Read more]



European Heritage Days 2026 at the Swedish Institute: come explore the Hôtel de Marle
For the 43rd edition of Heritage Days, the Swedish Institute in Paris invites you to guided tours of the building it calls home: the superb Hôtel de Marle. Meet on Saturday, 19 and Sunday, 20 September 2026 to discover this architectural gem in Paris! [Read more]



Heritage Days 2026 in Paris: Exceptional opening of the Senate at the Palais du Luxembourg this weekend
The Senate is taking part in Heritage Days 2026! Take advantage of the weekend of Saturday, September 19 and Sunday, September 20 to discover the Palais du Luxembourg, the Petit Luxembourg, not to mention the greenhouses of the Jardin du Luxembourg. An exceptional, must-see visit to do in Paris! [Read more]



Heritage Days 2026 in Paris: Guided tours of the Notre-Dame-de-Lorette church
Heritage Days are back in Paris on 19 and 20 September 2026: an opportunity to uncover some of the city’s heritage highlights, including the Notre-Dame-de-Lorette church. See the full program. [Read more]



For the 2026 Heritage Days in Paris, the Museum of Plans-Reliefs is offering family-friendly tours and activities.
On the occasion of Heritage Days, the Paris Museum of Relief Maps invites people of all ages to discover the 28 relief maps on display at the heart of the Invalides and to try their hand at the art of model-making, on Saturday, September 19 and Sunday, September 20, 2026. [Read more]



European Heritage Days 2026: Maison Poincaré, Paris’s Mathematics Museum
The Maison Poincaré aims to help you fall in love with math this Saturday, September 19, 2026, with a range of activities organized for Heritage Days. Here’s the program for you. [Read more]



Dive into the heart of Victor Hugo's world for the 2026 Heritage Days.
On the occasion of the 43rd edition of Heritage Days in Paris, the home of a towering figure in French literature invites you to enjoy a special program. Over the weekend of September 19–20, 2026, embark on an immersion into the life of Victor Hugo! [Read more]



The Auguste Comte House to visit during the 2026 European Heritage Days in Paris.
The Maison d'Auguste Comte unveils its schedule for the weekend of September 19–20, 2026 in Paris, as part of the 43rd edition of Heritage Days. [Read more]



Heritage Days 2026: the program at Paris's National Institute for Deaf Children
For Heritage Days 2026, set off to discover the National Institute for Deaf Youth in Paris. Here’s what this 43rd edition has in store, taking place on Saturday, September 19 and Sunday, September 20. [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 at La Roche House – Le Corbusier Foundation, Paris
As the season begins, heritage meets curiosity. Among the must-see sites, Maison La Roche, Le Corbusier’s modernist gem in the 16th arrondissement, opens its doors for the European Heritage Days. On 19 and 20 September 2026, museums, private mansions and unusual venues are free to visit during this one-off weekend. A great opportunity for architecture enthusiasts. [Read more]



Heritage Days 2026 at Saint-Sulpice Church in Paris, the program
For the 2026 Heritage Days in Paris, Saint-Sulpice Church invites you to discover all of its secrets on Saturday, September 19 and Sunday, September 20, 2026. An opportunity to rediscover this Left Bank treasure. [Read more]



Guided tours at the heart of this Russian cathedral for Paris' 2026 Heritage Days
Heritage Days are back on the weekend of September 19–20, 2026! A chance to discover the Saint Alexander Nevsky Orthodox Cathedral in Paris. Here’s the program! [Read more]



Embark on a tour of this unusual townhouse for Paris’s 2026 Heritage Days.
Located in the heart of Paris, this grand townhouse with medieval architecture awaits you for the European Heritage Days 2026. Discover the program on offer for the weekend of 19–20 September 2026. [Read more]



Journées du Patrimoine 2026 : découvrez l'atelier de la célèbre sculptrice Claude de Soria à Paris
Les Journées du Patrimoine reviennent pour une nouvelle édition le week-end des 19 et 20 septembre 2026 ! Entre les visites incontournables des institutions parisiennes, les lieux insolites, ludiques, pédagogiques... Partez à la découverte de la capitale et pénétrez les ateliers d'artistes parisiens, comme celui de Claude de Soria, dans le quartier de Montparnasse. [Read more]



European Heritage Days 2026: discover the American Church in Paris, in the 7th arrondissement
During Heritage Days, the American Church in Paris invites you to uncover its secrets through guided tours on September 19 and 20, 2026. [Read more]



Heritage Days 2026: An exceptional visit to the National Academy of Surgery in Paris
This year, the 2026 Heritage Days will be held on September 19 and 20. An opportunity to discover venues that open their doors specifically for the event, such as the National Academy of Surgery in Paris’ 6th arrondissement. [Read more]



Explore Montgomery's tomb, a forgotten treasure, for Heritage Days 2026.
For the 2026 Heritage Days, head to Chevreuse in the Yvelines department to discover the fascinating mausoleum of Count Henri Georges de Pembroke and Montgomery, a little-known treasure of Île-de-France. [Read more]



Heritage Days 2026: Workshops and tours at the Château de Malmaison and Bois-Préau
For Heritage Days 2026, head to the Hauts-de-Seine, at the Château de Malmaison and Bois-Préau. Step back in time and come marvel at this monument on September 19 and 20. [Read more]



Heritage Days 2026: explore the remarkable art village of Chomo in Seine-et-Marne
Heading to the Fontainebleau forest for Heritage Days 2026! Make your way to Achères-la-Forêt in Seine-et-Marne to discover Chomo’s art village, an offbeat open-air sanctuary of outsider art. [Read more]



Heritage Days 2026: Discovering the Château de la Madeleine (78)
On the occasion of the 2026 Heritage Days, held on 19 and 20 September 2026, the château de la Madeleine in the Yvelines is offering special, free tours for everyone. [Read more]



Heritage Days 2026: balcony concert at the Maurice Ravel House-Museum (78)
Head to Yvelines for Heritage Days, a department brimming with treasures to discover! On Sunday, September 20, 2026, the Maurice Ravel House-Museum invites you into the composer’s musical world. [Read more]



Journées du Patrimoine 2026: circus arts, a medieval encampment and concerts at Domaine des Macarons de Réau
The Domaine des Macarons de Réau welcomes you to a delicious weekend on September 19–20, 2026, for Heritage Days. On the program: medieval animations, pony rides, wooden games, and even concerts! [Read more]



Heritage Days 2026: discover the Safran Museum, an aerospace and space museum (77)
The Safran Aircraft and Space Museum is also taking part in Heritage Days on 19 and 20 September 2026. Based in Réau, in Seine-et-Marne, the museum is offering a full weekend of activities for children. [Read more]



Heritage Days 2026: a journey back to the Middle Ages at Blandy-les-Tours Castle (77)
Blandy-les-Tours Castle comes alive for Heritage Days 2026! On September 19 and 20, come discover this fortress in Seine-et-Marne, and get ready for a fantastic program. [Read more]



The Dacha Program at the Ivan Turgenev Museum for Heritage Days 2026
The Datcha, Ivan Turgenev Museum, invites us to the 2026 Heritage Days on September 19 and 20, 2026. Here’s the program! [Read more]



Heritage Days 2026 at the Potager du Dauphin in Meudon: an eclectic weekend
At the start of the new season, History is lived on a grand scale! The European Heritage Days invite you, on 19 and 20 September 2026, to unprecedented access to iconic treasures as well as others that are sometimes less well known. Among them, the Potager du Dauphin in Meudon preserves its royal history and hosts art workshops of the highest calibre. [Read more]



Heritage Days 2026 at the Living Railway Museum (Ajecta) in Longueville (77)
Ready for a time-travel journey at full steam? On September 19 and 20, 2026, the European Heritage Days open the doors to the Living Museum of the Railway in Longueville (77), a place where steam locomotives and historic wagons tell more than 150 years of railway history. For the occasion, the venue is offering a special reduced rate. [Read more]



Heritage Days 2026: An immersion in the heart of the photographer behind a fashion photographer
On the occasion of Heritage Days 2026, on September 19, the renowned fashion photographer Frank Horvat’s studio-house will be open to the public. Based in Boulogne-Billancourt, it invites visitors to explore half a century of photographs and archives, presented by the artist’s own daughter. An unmissable event for fashion enthusiasts. [Read more]



Heritage Days 2026: Explore the Castle of Saint-Jean de Beauregard (91)
On the occasion of the 43rd edition of Heritage Days, Château Saint-Jean de Beauregard welcomes you on Saturday, September 19 and Sunday, September 20, 2026. The lineup for these special days includes guided tours of the castle and its gardens. [Read more]



This vineyard in the heart of the Yvelines opens its doors for the 2026 Heritage Days.
Ready to raise a glass to heritage? European Heritage Days 2026 offer a weekend that’s as cultural as it is wine-focused, on September 19 and 20. Set your sights on the Yvelines, at Domaine de La Bouche du Roi, for a getaway among rows of vines, historical tales, and sips to savour! [Read more]



Inauguration of the Vanves ice houses and their unusual chapel for Heritage Days 2026
During the 2026 Heritage Days, set off to discover Vanves’ restored ice houses and their surprising neo-Romanesque chapel at the heart of Parc Frédéric Pic. A fascinating plunge into the quirky heritage of Hauts-de-Seine, on the doorstep of Paris! [Read more]



Heritage Days 2026: free treasure hunt and concert at the château in Soisy-sur-Seine (91)
Heading to Essonne and the town of Soisy-sur-Seine for the new edition of Heritage Days 2026! On September 19 and 20, explore the town with a family-friendly treasure hunt and enjoy the castle through a range of activities. [Read more]



Heritage Days 2026: A tour of the medieval town and its crypt in Château-Landon (77)
For Heritage Days, the medieval town of Château-Landon invites you to join them on 19 and 20 September 2026 for an exceptional tour through its monuments, including the lesser-known ones, in the heart of Seine-et-Marne. [Read more]



Drones, parade and concert: the Departmental Firefighters Museum's program for the European Heritage Days 2026
The Departmental Firefighters Museum of Val d’Oise, located in Osny, is taking part in Heritage Days and invites children and adults for a deep dive into the world of firefighters on September 19 and 20, 2026. [Read more]



This stunning troglodyte church is worth discovering during the 2026 Heritage Days in the Paris region.
A church carved into a cliff in the Paris region? It’s one of Île-de-France’s most unusual treasures you’ll be able to discover during the 2026 Heritage Days, on September 19 and 20. [Read more]



Scavenger hunt and guided tours at the Pissarro Museum in Pontoise: activities for the 2026 Heritage Days
The Pissarro Museum participates in the new edition of Heritage Days. Built on the site of a former medieval castle, the museum pays tribute to painter Camille Pissarro. On the weekend of September 19–20, 2026, discover the museum and its gardens, all with a stunning view over the Val-d'Oise. [Read more]



Heritage Days 2026: visit the King's Kitchen Garden at the Palace of Versailles for free (78)
For Heritage Days, head to Versailles! Not far from the château, the Potager du Roi invites you to enjoy two free days in a spellbinding setting, on September 20 and 21, 2026. On the program: tours and a host of activities for young and old alike! [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 Rambolitrain Museum: a visit and a family train ride
Do you know Rambolitrain? This quirky miniature-train museum is opening its doors on the weekend of September 19–20, 2026, for Heritage Days. Bring family or friends and discover this playful venue and its fascinating collections, free of charge. [Read more]



Heritage Days at the Bourget Air and Space Museum, activities on the agenda
The Air and Space Museum also invites you to Heritage Days 2026, with a weekend packed with activities on September 19–20, 2026! [Read more]



Heritage Days 2026 at the Maison des Italiens in Versailles — the program
On 19 and 20 September 2026, the European Heritage Days invite us to lift the veil on unusual and emblematic sites across France. This year, head to the Yvelines to explore the Maison des Italiens in Versailles, an elegant listed townhouse that’s ready to reveal its secrets. [Read more]



A Merovingian-era immersion at the Val d'Oise Archaeological Museum for Heritage Days 2026
On the occasion of Heritage Days, the Val-d'Oise Archaeological Museum invites you to discover its program for the weekend of September 19 and 20, 2026. And what if we set off to explore the fascinating adventures of archaeological heritage? [Read more]



This remarkable cottage, with its witch’s-house vibe, is open for tours during Heritage Days 2026.
On the occasion of the 2026 European Heritage Days, discover Wood Cottage, a true architectural gem of Le Vésinet, an uncanny residence that evokes the universe of a fantasy film. The program is here. [Read more]



Heritage Days 2026 at the Jean-Jacques Rousseau Museum in Montmorency (Val-d'Oise): workshops and exhibitions on the program
For Heritage Days, the Jean-Jacques Rousseau Museum in Montmorency, Val-d'Oise (95), invites you to a special weekend program for September 19 and 20, 2026. More details to come! [Read more]



Heritage Days 2026: the program at Poissy's Maison de Fer (78)
What to do for Heritage Days 2025 in Yvelines? In Poissy, this is your chance to (re)discover the Iron House on September 19, 2026. Discover this astonishing and one-of-a-kind building, whose visit should delight lovers of architectural gems. [Read more]



Heritage Days 2026: explore Villa Savoye in virtual reality (78)
La Villa Savoye opens its doors free of charge on September 19 and 20, 2026, to mark the new edition of Heritage Days, with virtual reality tours on the agenda. [Read more]



Ouverture exceptionnelle du parc du Château de Bourdonné (78) pour les Journées du Patrimoine 2026
Propriété privée fermée au public, le Château de Bourdonné ouvre exceptionnellement les portes de son parc verdoyant pour les Journées du Patrimoine 2026. L'occasion de découvrir cette élégante demeure de style Louis XIII au cœur de la ville des Yvelines depuis ses jardins ! [Read more]



Heritage Days 2026 in Houdan (78): the program for the medieval town
Nestled in the heart of Yvelines, a charming medieval town still hides a wealth of relics from the Middle Ages—dungeons, ramparts, and old inns. For Heritage Days on September 19 and 20, 2026, come and discover them in Houdan! Here’s what awaits you for this exceptional weekend. [Read more]



Heritage Days 2026 at the André Derain House (78): the program
Let yourself be swept up by the color and the brushwork of the great masters for European Heritage Days! They invite you to step through doors you’ve never seen before, such as in Chambourcy, in the Yvelines, where the André Derain House-Museum opens its studio and reveals the flamboyant treasures of Fauvism and the 20th century. [Read more]



Heritage Days 2026: an offbeat program at the Désert de Retz in Chambourcy (78)
For Heritage Days 2026, a bucolic experience is taking shape at the Désert de Retz in Chambourcy, Yvelines, this Sunday, September 20. On the agenda? Free activities in the heart of this beautiful green haven. [Read more]



Heritage Days 2026: the schedule of tours at the Museum of Urban Transport in Chelles (77)
The Urban Transport Museum, located in Chelles, opens its doors to visitors free of charge for Heritage Days on September 19–20, 2026. Come discover over 70 transport vehicles dating from 1863 to the present day through a special program for these Heritage Days. [Read more]



Family activities and museum tours at the Jouy Textile Museum for Heritage Days 2026
For European Heritage Days 2026, on September 19 and 20, the Musée de la Toile de Jouy welcomes curious visitors and is planning free activities in the Yvelines. [Read more]



Heritage Days 2026: Visit Château de Breteuil (78) for an immersive history experience.
The Château de Breteuil participates in Heritage Days on the weekend of September 19–20, 2026. During this day, visitors can tour the Château des Contes de Perrault, but note: admission remains payable. [Read more]



Journées du Patrimoine 2026 : visite exceptionnelle d'un abri anti-aérien à Bourg-la-Reine dans les Hauts-de-Seine
Lors de ces Journées du Patrimoine 2026, plongez dans l'Histoire, et découvrez un véritable abri anti-aérien de la Seconde Guerre mondiale, à Bourg-la-Reine, ces 19 et 20 septembre 2026. Une visite exceptionnelle qui vaut le détour ! [Read more]



Heritage Days 2026: Conflans-Sainte-Honorine's Batellerie Museum program (78)
They're back: on the weekend of Saturday, September 19 and Sunday, September 20, 2026, the Journées du Patrimoine invites us to a new edition in Paris and Île-de-France. Over in Conflans (78), head to the Batellerie and Inland Waterways Museum for a special program! [Read more]



Heritage Days 2026: this weekend’s lineup at Archéa, the archaeological museum in Louvres (95)
For Heritage Days, Archéa, the archaeology museum in Pays de France, based in Louvres in Val-d'Oise (95), invites you to special tours on Saturday, September 19 and Sunday, September 20, 2026. Here’s the program for the 43rd edition! [Read more]



Exclusive tours and a never-before-seen exhibition at the Château d'Écouen for the 2026 Heritage Days.
The Château d'Écouen and its Renaissance museum are taking part in Heritage Days on Saturday, 19 and Sunday, 20 September 2026. Take advantage of free guided tours for visitors of all ages. [Read more]



A festive Sunday at Fort de Cormeilles-en-Parisis for Heritage Days 2026
Visit Fort de Cormeilles during the 43rd edition of Heritage Days, on Sunday, September 20, 2026. This former military fortress, now owned by the Île-de-France Regional Green Spaces Agency, opens its doors to families and history enthusiasts, free of charge, of course! Here’s the program. [Read more]



Heritage Days 2026: the Beaumont Palace cinema, a listed historic monument, opens its doors
On the occasion of Heritage Days, this Saturday, September 19 and Sunday, September 20, 2026, the Val-d'Oise’s best-known cinema reveals a different side. Find out what's on this weekend. [Read more]



Heritage Days 2026 at Victor Hugo's Literary House: weekend program
Victor Hugo’s literary house in Bièvres, Essonne, will open its doors to the public free of charge on September 19 and 20, 2026, to mark the new edition of the Journées du Patrimoine (Heritage Days). [Read more]



Heritage Days 2026: treasures to discover in the town of Sucy-en-Brie (94)
For the new edition of Heritage Days, the town of Sucy-en-Brie is lining up a host of tours and encounters. It’s an opportunity to discover the town in a different light on Saturday, September 19 and Sunday, September 20. [Read more]



Heritage Days 2026 at Mesnil-Voysin Castle: the schedule of activities
The Château de Mesnil-Voysin, located in Bouray-sur-Juine, is set to welcome visitors this weekend, September 19–20, 2026, as it celebrates the new edition of Heritage Days. [Read more]



Heritage Days 2026 in Rosny-Rail (93): explore the Seine-Saint-Denis railway museum
Have you heard of the Rosny-sous-Bois Train Museum? For the 43rd Heritage Days, the Rosny Rail Museum will open its doors free of charge on Saturday, September 19 and Sunday, September 20, 2026, offering a journey into the heart of railway history! [Read more]



Discover Beaumont-sur-Oise Castle during Heritage Days 2026
Beaumont-sur-Oise Castle takes center stage in this year’s edition of Heritage Days. A medieval relic, the castle’s keep looms over the banks of the Oise and offers a stunning view of Saint-Laurent Church, to be explored on September 19 and 20, 2026. [Read more]



Guided tours and performances at the Château de Champs-sur-Marne for the 2026 Heritage Days
As Heritage Days bring to life the Paris region’s greatest treasures, the Château de Champs-sur-Marne unveils a rich program for this weekend of September 19–20, 2026. [Read more]
Dates and Opening Time
From September 19, 2026 to September 20, 2026
Prices
Free