Jep historic monument guide

Journées du Patrimoine 2025: visit the sublime Bibliothèque Mazarine in Paris

New "Journées du Patrimoine" in Paris, and new tours in prospect. This Saturday, September 20 and Sunday, September 21, 2025, why not discover the sublime Bibliothèque Mazarine, France's oldest public library!

Heritage Days 2025 in Rambouillet (78): discover historic monuments

For the Journées du Patrimoine 2025, the town of Rambouillet in the Yvelines is opening its doors to you for a weekend of discoveries and guided tours of its historic monuments, on September 20 and 21.

Heritage Days 2025 in Saint-Rémy-les-Chevreuse (78): the program

In the heart of the Vallée de Chevreuse, a fascinating town invites you to discover its secrets and the illustrious inhabitants who have trodden its soil. For the Journées du Patrimoine 2025, why not take a stroll through Saint-Rémy-les-Chevreuse? Here's what's in store for you!

Heritage Days 2025: guided tours of the astonishing Château de la Roche Guyon (95)

Take advantage of the Journées du Patrimoine (Heritage Days) on Saturday September 20 and Sunday September 21, 2025, to visit a unique château in the Île-de-France region: Château de la Roche Guyon, located in the Val d'Oise.

Heritage Days 2025: tours of the medieval château de Villeconin (91)

The Château de Villeconin, located in the Essonne region of France, invites us to take advantage of the new edition of the Journées du Patrimoine (Heritage Days) by showcasing its treasures during a program of visits this weekend of September 20 and 21, 2025.

Heritage Days 2025: discover the château and park at Courson (91)

The Domaine de Courson in Essonne invites you to join us for the 42nd Heritage Days. On the weekend of September 20 and 21, 2025, discover the château and its remarkable garden through a special program of visits.

Journées du Patrimoine 2025: a photo exhibition on hip hop at the Fort d'Aubervilliers

On September 20 and 21, 2025, the Journées du Patrimoine return to Paris and the Île-de-France region. In Aubervilliers, you can discover the city's Fort during an original photo exhibition.

Heritage Days 2025 at the Maison André Derain (78), the program

Get caught up in the colors and gestures of the great masters! The European Heritage Days, on September 20 and 21, 2025, invite you to enter a whole new world of art. In Chambourcy (Yvelines - 78), the Maison-musée André Derain opens its studio and unveils the flamboyant treasures of fauvism and the XXᵉ century.

Heritage Days 2025 at Royaumont Abbey

For the Journées du Patrimoine 2025, the Royaumont estate is opening its doors to guided tours of the Abbey and its gardens.

Heritage Days 2025 at the Ecole des arts joailliers: discover the Hôtel de Mercy-Argenteau

The Ecole des arts joailliers, located in the heart of the magnificent Hôtel de Mercy-Argenteau, is opening its doors to the public with a host of events for its first participation in the Journées du Patrimoine, on September 20 and 21, 2025.

Heritage Days 2025: program of events at Château de Rambouillet (78)

September sees the return of the Journées du Patrimoine (Heritage Days): find out what's on at the Château de Rambouillet (78) on September 20 and 21, 2025.

Heritage Days 2025 at Château de Plaisir in Yvelines (78)

What if, for these Journées du Patrimoine 2025, we set out to conquer the castles of the Île-de-France region? In the Yvelines, the Château de Plaisir is entering the ball! Here's what's in store for you on September 20 and 21, 2025.

Heritage Days 2025 in Val-de-Marne: exceptional visit to the Saint-Maurice hospitals (94)

This year, the Journées du Patrimoine are back for their 42nd edition. An opportunity to discover the fascinating sites of the Val-de-Marne, including the Hôpitaux de Saint-Maurice, this weekend from September 19 to 21, 2025. Click here for the program of this exceptional visit.

Heritage Days 2025: discover the program at Château de Rosa Bonheur (77)

The Château de Rosa Bonheur in Thomery is taking part in the latest edition of the Journées du Patrimoine. An opportunity to immerse yourself in the world of the famous animal painter. Discover the program for September 20 and 21, 2025.

Journées du Patrimoine 2025 in Paris: architectural tours at the Domaine du Palais-Royal

The Palais-Royal opens its doors to us for the Journées du Patrimoine, on September 20 and 21, 2025, and offers a special program for the occasion. This year, we're getting ready to explore this treasure of Paris's 1st arrondissement from an architectural perspective! Here's what you need to know.

Heritage Days 2025: exceptional visit and beekeeping at Château de la Celle-Saint-Cloud (78)

On September 20 and 21, 2025, discover the magnificent gardens of the Château de la Celle-Saint-Cloud, in the Yvelines region, an estate belonging to the French Ministry of Foreign Affairs and host to heads of state! This year, we'll be exploring the estate and meeting beekeepers through an exhibition in the Orangerie.

Journées du Patrimoine 2025 at Sacré-Coeur in Paris: discover the organ building site

Perched high on the Butte Montmartre, the Basilique du Sacré-Coeur is one of Paris's most emblematic monuments. And just in time for the Journées du Patrimoine, this unusual church reveals its secrets with a special program on the weekend of September 20 and 21, 2025. This year, we're off to discover the organ building site as the monument is given a new lease of life.

Journées du Patrimoine 2025 at the Maison La Roche - Fondation Le Corusier in Paris, the program

Back to school, put away the flip-flops, get out the sneakers... and explore the capital's hidden treasures! Head for the European Heritage Days on September 20 and 21, 2025, when museums, castles and unusual spots open their doors wide. In Paris, don't miss the Maison La Roche, a modernist masterpiece by Le Corbusier, to be (re)discovered in the chic 16th arrondissement.

Heritage Days 2025 at the Château royal de Montceaux (77): discover the Château des Trois Reines

How about exploring the remains of the Château Royal de Montceaux? This historic site in Seine-et-Marne is opening its doors to us for the Journées du Patrimoine (Heritage Days) on the weekend of September 20 and 21, 2025.

Heritage Days 2025 at the Pavillon Royal de la Muette in Saint-Germain-en-Laye (78)

September marks the return of the Journées du Patrimoine! The Yvelines will be celebrating with a number of unexpected visits, including the exceptional opening of the Pavillon Royal de la Muette in Saint-Germain-en-Laye, on Saturday September 20, 2025, by reservation only.