Exceptional opening criterion

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.

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.

Heritage Days 2026: this historic villa in Asnières welcomed Sarah Bernhardt and Rosa Bonheur

The Villa des Roses opens its doors in Asnières-sur-Seine for Heritage Days on 19 and 20 September 2026. A chance to discover a charming residence with ties to the world of the circus.

Heritage Days 2026 at INA, the National Audiovisual Institute (94): the program

The National Audiovisual Institute (INA) takes part in Heritage Days 2026 and opens the doors to its Bry-sur-Marne headquarters. Find out the program for the 43rd edition, held on September 19 and 20!

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.

Loto Studios to Open Specially for Heritage Days 2026

On the occasion of the European Heritage Days 2026 and to celebrate the Loto’s 50th anniversary, FDJ United studios will exceptionally open their doors to the public for the very first time. Discover the history and the behind the scenes of the famous draws in Boulogne-Billancourt on September 19 and 20.

Heritage Days 2026: visit the École Polytechnique in Palaiseau (91)

The École Polytechnique is also taking part in Heritage Days 2026, offering guided tours on Saturday 19 and Sunday 20 September 2026.

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.

Heritage Days 2026: a visit to the Bois-Colombes air-raid shelter (92)

History and World War II enthusiasts will be able to enjoy Heritage Days on September 19 and 20, 2026, by visiting the Bois-Colombes air-raid shelter, open to visitors for this occasion.

Heritage Days 2026: aircraft exhibition and flight simulator at Chavenay Airfield (78)

Nestled in the heart of the Versailles plain, the Chavenay-Villepreux Aerodrome opens its doors for Heritage Days 2026. From displays of legendary aircraft to hands-on explorations of aviation careers, join us for an immersive and thrilling dive into the world of aeronautics.

Journées du Patrimoine 2026 : discover the park at Château de Bourdonné in Yvelines

Private property closed to the public, the Château de Bourdonné will exceptionally open its verdant park for Heritage Days 2026. A rare opportunity to glimpse the exterior of this elegant Louis XIII–style residence nestled in the heart of the Yvelines.

Heritage Days 2026 at Parc aux Étoiles (78): astronomy and space exploration

Ready to embark on a cultural journey that rockets straight to the stars? On September 19 and 20, 2026, the European Heritage Days fling open the doors to unusual places, and the Parc aux Étoiles in Triel-sur-Seine (78) shines on the program with its captivating immersion in astronomy and space exploration!

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.

Heritage Days 2026: Cartier Jewelry Institute opens its doors for a rare, one-off visit

On the occasion of this new edition of the European Heritage Days, take a look behind the scenes at the Cartier Jewellery Institute. Housed in a historic townhouse in the heart of Paris, visitors will be invited to an immersive tour of the jeweler’s workshops on 19 and 20 September 2026.

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.

Heritage Days 2026: Explore the Ministry of the Armed Forces — Hôtel de Brienne in Paris

What if we paid a visit to the Ministry of the Armed Forces for Heritage Days? As part of the 43rd edition of the event, the Hôtel de Brienne opens its doors for exceptional tours on Saturday, September 19 and Sunday, September 20, 2026.

Journées du Patrimoine 2026 : step inside the Conseil d'État at the Palais-Royal

On the occasion of the European Heritage Days, September 19 and 20, 2026, the Conseil d'État will, exceptionally, open the doors to its headquarters housed in the Palais-Royal in Paris. A rare opportunity to discover this historic institution, its architectural heritage, and the workings behind France's highest administrative court. Reservations open on September 1, 2026.

Heritage Days 2026: an exceptional chance to visit the Constitutional Council at the Palais-Royal

On 19 and 20 September 2026, the European Heritage Days offer an exceptional chance to discover the Constitutional Council, housed in the Palais-Royal in Paris. A rare opportunity to step inside this Republic institution, explore its historic salons, and gain a deeper understanding of its role at the heart of French democracy.

This hotel-restaurant in Saint-Germain-en-Laye hides a secret room—the birthplace of Louis XIV.

A royal cradle tucked away in a hotel-restaurant! In Saint-Germain-en-Laye, the Pavillon Henri IV houses the oratory where Louis XIV was born in 1638. Discover the secrets of this exceptional historic residence and the conditions for visiting its centerpiece.

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.