Here comes one of the events we look forward to with anticipation: the Journées du Patrimoine. This cultural event that spans across Europe awaits us every year in September. For a weekend, we go on a quest for the finest treasures of our heritage through often-free visits, the exceptional openings of places usually closed to the public, and original activities. And of course, Paris and all of Île-de-France are in on it! So set your calendars: September 19 and 20, 2026, and enjoy the Journées du Patrimoine.
If you're passionate about architecture, you won't want to miss this must-attend moment! The most beautiful buildings and the most surprising structures reveal their secrets for the occasion. Lots of architectural tours await you in Paris and across the entire region. So eager to discover the program for this new edition? Perfect, we’ve put together a selection of beautiful architectures to discover in the Île-de-France region for the Journées du Patrimoine 2026!
To make sure you don't miss out on any great outings, we invite you to bookmark this guide and consult it regularly right up to the big day!



Heritage Days 2026: Visit the Embassy of the State of Qatar in Paris
Have you always dreamed of discovering Qatar? During Heritage Days, you can get a small glimpse with a free tour of the Qatari Embassy, this Saturday, September 19, 2026. [Read more]



Journées du Patrimoine 2026: exceptional opening of PSG campus in Poissy (78)
On the occasion of Heritage Days, Paris Saint-Germain will open its Poissy campus to the public for the first time on 19 and 20 September 2026. This year, tours are limited to residents of nearby towns. [Read more]



European Heritage Days 2026 at the Hôtel de Noailles in Saint-Germain-en-Laye (78): the program
Prêt.e.s à dénicher un trésor caché ? On September 19 and 20, 2026, the European Heritage Days invite you to step behind the doors of a little-known gem: the Hôtel de Noailles in Saint-Germain-en-Laye (Yvelines 78). An invitation to explore history, art, and architecture off the beaten track! [Read more]



Heritage Days 2026: discover Folie Desmares — Heritage House in Châtillon
What could be more fitting than visiting the House of Heritage during Heritage Days? Join us at Folie Desmares in Châtillon on September 19 and 20, 2026 for a weekend at the heart of art. [Read more]



Heritage Days 2026: a free weekend at the Bourse de Commerce – Pinault Collection
Heritage Days are back for the weekend of September 19–20, 2026 in Paris. On the program: free tours at the Bourse de Commerce to explore the Pinault Collection and the stunning architecture of this Parisian landmark. [Read more]



Visit Saint-Denis's Olympic swimming complex during Heritage Days 2026.
Take part in Heritage Days 2026 to explore Saint-Denis’ sporting heritage: join a sport-focused themed trail and tour the Olympic Aquatic Center on Saturday, September 19, 2026. [Read more]



Heritage Days 2026 in Paris: the American Cathedral unveils its program
In Paris, the American Cathedral awaits you on the weekend of September 19–20, 2026, for Heritage Days. Here’s the schedule you can look forward to. [Read more]



Heritage Days 2026: visit Société Générale’s historic Central Agency.
Société Générale's central agency opens its doors to visitors on September 19 and 20, 2026: take advantage of Heritage Days to discover this Belle Époque landmark. [Read more]



Heritage Days 2026: Explore the Magasins Généraux in Pantin
It's a must-visit spot in Pantin: come discover the Magasins Généraux and its history during Heritage Days 2026, on September 19. Here's the weekend's program. [Read more]



Heritage Days 2026 in Paris: studio tours at the Cité Montmartre-aux-artistes
Not far from Montmartre Hill hides a true artists’ enclave, the largest in Europe! During Heritage Days 2026, we’re off to discover this astonishing, inspiration-filled place in the heart of Paris’s 18th arrondissement, this coming weekend of September 19 and 20. [Read more]



Heritage Days 2026 in Paris: rediscover the Saint-Michel Fountain in the Latin Quarter
It's an iconic backdrop for Paris and the Latin Quarter: the Saint-Michel Fountain, freshly restored, will reveal its secrets to you on Saturday, September 19, 2026, for the 43rd edition of Heritage Days. [Read more]



Heritage Days 2026 at the Palais de la Porte Dorée: free tours and family workshops
Experience the 43rd Heritage Days at the Palais de la Porte Dorée: September 19–20, 2026, this cultural venue offers a wide range of tours and activities to enjoy with friends or family. [Read more]



Explore La Ruche, the century-old artists' colony and its gardens during Heritage Days 2026.
Join Heritage Days on September 19 and 20, 2026, for a healthy dose of culture! Over an entire weekend, wander the capital in search of the secrets hidden within the city’s castles, museums, and monuments. A free odyssey that will lead you to lesser-known spots like La Ruche Seydoux, a landmark that has welcomed some of the greatest artists. [Read more]



Exclusive tours of Exelmans Barracks in Paris for the 2026 Heritage Days
On the occasion of the 2026 Heritage Days in Paris, the discreet Exelmans Barracks will exceptionally open its doors in the 16th arrondissement for an unusual immersion in military history. [Read more]



This pavilion, with an oriental-palace flair, invites you to the 2026 Heritage Days.
A relic of the 1878 World’s Fair, the Pavilion of the Indies stands out as an unconventional building in Courbevoie. Discover this hybrid oriental palace during Heritage Days 2026, on the weekend of September 19–20! [Read more]



Heritage Days 2026: Guided tour to discover the Comédie-Française
On the occasion of the 43rd edition of Heritage Days in Paris and Île-de-France, the Comédie-Française will exceptionally open its doors for guided tours on 19 and 20 September 2026. Please note, registration is required! [Read more]



Journées du Patrimoine 2026 : Doors Open at the Conciergerie, the former prison of the French Revolution
On the occasion of Heritage Days, the Conciergerie will open its doors to you for free during the weekend of September 19–20, 2026. What’s on offer? Self-guided tours of this former Parisian prison steeped in history. [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]



Book your 2026 Heritage Days at Paris Roissy-Charles-de-Gaulle Airport (93)
For Heritage Days 2026 in Seine-Saint-Denis (93), how about discovering France’s first airport? Indeed, Roissy-Charles-de-Gaulle Airport is offering activities and guided tours this Saturday, September 19, 2026. [Read more]



Heritage Days 2026: discover the Hôtel de Mercy-Argenteau with the School of Jewelry Arts
The Hôtel de Mercy-Argenteau welcomes the public in collaboration with the School of Jewelry Arts for the Heritage Days, on September 19–20, 2026. Guided tours and activities invite visitors to discover this historic Paris venue through the world of jewelry and craftsmanship. [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: tours and activities at Maubuisson Abbey (95), the program
See what’s in store at the Abbey of Maubuisson for Heritage Days 2026, the weekend of September 19–20, 2026. [Read more]



Heritage Days 2026 in Paris: an exceptional tour of the Ministry of Culture at the Palais-Royal Estate
The Palais-Royal opens its doors for Heritage Days on September 19 and 20, 2026, and this is an opportunity to enjoy an exceptional tour of the Ministry of Culture. [Read more]



This villa by Hector Guimard opens its doors for Heritage Days 2026.
In Le Vésinet, La Hublotière unveils the world of Hector Guimard, a pioneer of Art Nouveau, during the Heritage Days on September 19–20, 2026. [Read more]



Journées du Patrimoine 2026: Step inside the Villa des Roses in Asnières-sur-Seine
On 19 and 20 September 2026, take part in the Journées du Patrimoine to discover Villa des Roses, an elegant 19th‑century residence where the worlds of the circus, artists, and Île-de-France heritage converge. [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 in Boulogne-Billancourt (92): museums and monuments to visit
Heritage Days are back in Paris and the Île-de-France region. In Hauts-de-Seine, the city of Boulogne-Billancourt unveils a rich program of tours and activities for this weekend of September 19–20, 2026. Discover the program in detail! [Read more]



Heritage Days 2026: step behind the scenes at the Paris Judicial Court
For the 2026 Heritage Days, the Paris Judicial Court opens the doors to its Renzo Piano–designed tower. A rare chance to explore this contemporary architectural masterpiece rising 160 meters, its sunlit grand halls, and the inner workings of Parisian justice in the 17th arrondissement. [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]



Visit and product tasting at the Embassy of Lithuania in Paris for Heritage Days
On the occasion of Heritage Days, the Embassy of Lithuania invites you to explore its spaces on Saturday, September 19, 2026. It’s the perfect moment to discover one of Paris’s most beautiful townhouses through an artistic program! Book your visit to the embassy. [Read more]



European Heritage Days 2026: tour the Hôtel de Charost, the British Ambassador's residence in France
Want to explore places that are usually off-limits? Heritage Days will pull back the curtain on the behind‑the‑scenes of Paris and Île‑de‑France... This year, the Hôtel de Charost, residence of the British Ambassador, is opening its doors by reservation. Save the date: Saturday, September 19, 2026—by reservation only, of course! [Read more]



Heritage Days 2026 in Paris: an exceptional tour of Le Monde newspaper
Heritage Days take place in Paris from September 19 to 20, 2026. For the curious seeking special access, Le Monde opens the doors to its new offices for a free tour and presents a full festival of events. Here’s the weekend program. [Read more]



Heritage Days 2026 at Tour Trajane (91): Discover the ancient column of Méréville
Did you know that a Roman monument overlooks the Essonne? As Heritage Days arrive on 19 and 20 September 2026, we invite you to discover the Trajan Tower, a local curiosity in the town of Méréville! Booking is mandatory—secure your tickets without delay. [Read more]



European Heritage Days 2026 at the Pina Bausch Conservatory, Montreuil’s music and dance school
European Heritage Days, organized for September 19 and 20, 2026, lift the curtain on unusual venues, including the Pina Bausch Conservatory in Montreuil (Seine-Saint-Denis), a 1970s architectural gem. A chance to (re)discover this metallic jewel recently renovated! [Read more]



Heritage Days 2026: Discover La Briqueterie in Vitry-sur-Seine (94)
The Briqueterie in Vitry-sur-Seine is taking part in Heritage Days on Saturday, September 19, 2026, and invites you to discover the activities of this National Centre for Choreographic Development. Here’s what’s in store for the occasion. Reserve your seat quickly! [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: 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 La Seine Musicale (92): a musical stroll!
The Seine Musicale takes part in Heritage Days 2026 and, true to itself, treats us to a musical stroll. Join us on Saturday, September 19, 2026. [Read more]



Heritage Days 2026 at Maison Ferrari (92): discover the program in Clamart
Off to the Hauts-de-Seine for this year’s Journées du Patrimoine 2025: the Maison Ferrari in Clamart, built by the duchess of Galliera, today housing a retirement home, set in a sublime setting. A chance to discover, like never before, this gem of Hauts-de-Seine heritage, this weekend of 19 and 20 September 2026. [Read more]



Heritage Days 2026 at the Paris Malaquais National School of Architecture, the program
Heritage Days invite you to join us for the weekend of September 19–20, 2026, and the Paris-Malaquais National School of Architecture, housed on the Beaux-Arts campus, reveals its program. [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]



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]



European Heritage Days 2026 at the Swedish Institute in Paris, in the heart of the Hôtel de Marle
For the 43rd edition of Heritage Days, the Swedish Institute in Paris offers guided tours of the building that houses it: the superb Hôtel de Marle. Join us on September 19 and 20, 2026 to discover this architectural gem! [Read more]



Heritage Days 2026: Discover the French Order of Pharmacists' headquarters in Paris
The headquarters of the Order of Pharmacists opens to the public for Heritage Days 2026: here is the schedule for September 19 and 20! [Read more]



Go behind the scenes of the Gare de Lyon restoration for Heritage Days 2026.
Gare de Lyon gets a facelift, and for the 2026 Heritage Days you can glimpse behind the scenes of its restoration on an exceptional tour. Mark your calendar for September 19, 2026 for this site tour. [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]



Heritage Days 2026 at the Hôtel de Beauvais — Paris Administrative Court of Appeal
For the 2026 Heritage Days, discover the Hôtel de Beauvais, which has housed the Court of Appeal of Paris since 2003. Built in 1654 for Catherine de Beauvais, this listed monument is brimming with trompe-l'œil effects and deceptive symmetry. Mark your calendars for the weekend of September 19–20, 2026 for this extraordinary opening. [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]



Discover the Niemeyer Space at Heritage Days 2026, a jewel of modern architecture in Paris!
On the occasion of the 2026 Heritage Days, embark on a visit to the emblematic Espace Niemeyer, headquarters of the French Communist Party. Designed by Brazilian architect Oscar Niemeyer, this building, with its bold, distinctly futuristic design, is opening its doors for an exceptional occasion. A must-see for art and architecture enthusiasts. [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]



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]
Nice visits!
Dates and Opening Time
From September 19, 2026 to September 20, 2026
Prices
Free