Jep historic monument guide

Heritage Days 2025 in Saint-Germain-en-Laye (78), the royal town that inspired artists

The Journées du Patrimoine (Heritage Days) return to Paris and the Île-de-France region on September 20 and 21, 2025, for a new round of cultural adventures! In the Yvelines, Saint-Germain-en-Laye is no exception to the rule, and has concocted a "royal" program for you to discover during this exceptional weekend. Mark your calendars!

Heritage Days 2025 at the Château des Tourelles in Bois-Colombes (92), the program

The Journées du Patrimoine will be held on the weekend of September 20 and 21, 2025, in Paris and the Ile-de-France region. In the Hauts-de-Seine region, it's time to (re)discover the Château des Tourelles in Bois-Colombes.

Heritage Days 2025 at Château de Beaumont-sur-Oise (95), program

The Château de Beaumont-sur-Oise is unveiled during the Journées du Patrimoine 2025. A vestige of the Middle Ages, the château's keep dominates the banks of the River Oise and offers a splendid view of the Saint-Laurent church, to be discovered on September 20 and 21.

Heritage Days 2025: free tours of the King's Kitchen Garden at the Château de Versailles (78)

For the Journées du Patrimoine 2025 (Heritage Days 2025), we're off to the Potager du Roi at the Château de Versailles to take advantage of two free days in an enchanting setting, on September 20 and 21. On the program: visits with plenty of entertainment for young and old alike!

Heritage Days 2025: medieval festival at Château de la Madeleine (78)

To mark the Journées du Patrimoine 2025 (Heritage Days 2025) on September 20 and 21, the Château de la Madeleine in the Yvelines region of France is offering a special program featuring a medieval festival.

Journées du Patrimoine 2025 at the Cour des Comptes in Paris: tours and events

The Journées du Patrimoine (Heritage Days) are back this weekend, September 20-21, 2025, in Paris and the Ile-de-France region! It's a chance to discover the secrets of the capital's major institutions, including the Cour des Comptes, which is unveiling an exciting program of visits and events.

Journées du Patrimoine 2025 in Paris: visit the Sainte-Chapelle, the monument of a thousand stained-glass windows

Take advantage of the Journées du Patrimoine 2025 to enter the magnificent Sainte-Chapelle, the capital's architectural gem built in the 13th century. On Saturday September 20 and Sunday September 21, 2025, come and learn more about this hidden edifice, built to house Christ's Crown of Thorns.

Heritage Days 2025: visit to the Holy Trinity Church construction site

The Church of the Holy Trinity opens its doors for the Heritage Days on Saturday, September 20, 2025. On the program: a tour of the construction site.

Heritage Days 2025 at Château de Villiers - Draveil (91): the weekend program

The town of Draveil and its Château de Villiers invite you to join them for the Journées du Patrimoine, on Saturday 20 and Sunday 21 September 2025, with a programme of visits for young and old!

Heritage Days 2025 at the Domaine de Chamarande (91): a historic and artistic site

Fancy a family outing during the Journées du Patrimoine 2025? Then head for the Domaine de Chamarande, in the Essonne region: the château and its grounds reveal their program for the weekend of September 20 and 21, 2025.

Heritage Days 2025 at the Institut national d'histoire de l'art and its library (INHA)

To mark the 42nd Journées du Patrimoine (Heritage Days), the Institut national d'histoire de l'art invites you to discover a range of free tours and activities for the whole family on September 20 and 21, 2025. An opportunity to discover a building usually reserved for students and researchers.

Heritage Days 2025: the program at Château du Grand Jard in Voisenon (77)

The Journées du Patrimoine (Heritage Days) take over the Paris region this weekend, September 20-21, 2025. In Seine-et-Marne, a program of special visits awaits us at the Château du Grand Jard, in Voisenon.

Heritage Days 2025: guided tour of the Château de Médan (78)

To mark the Journées du Patrimoine (Heritage Days) on September 20 and 21, 2025, why not take a plunge into the Pleiades at the heart of the Château de Médan in the Yvelines, home to poets and so many other illustrious characters?

Journées du Patrimoine 2025: visits to Maubuisson Abbey (95), the program

To mark the Journées du Patrimoine, Maubuisson Abbey is opening its doors to visitors on Saturday September 20 and Sunday September 21, 2025. Discover the program!

Heritage Days 2025: visit and events at the Fort de Cormeilles-en-Parisis (95)

Visit Fort de Cormeilles during the Journées du Patrimoine 2025, on Saturday September 20 and Sunday September 21. This former military fort, now owned by the Agence des Espaces Verts de la région Ile de France, is opening its doors to families and history buffs, free of charge of course!

Heritage Days 2025 in Gif-sur-Yvette (91): discover the town's many treasures

The 2025 edition of the European Heritage Days takes place on the weekend of September 20 and 21: so this is your chance to discover heritage treasures near you or at the other end of the region, as here in Gif-sur-Yvette, Essonne.

Heritage Days 2025 in Provins (77): tours and events in a medieval city

During the Journées du Patrimoine 2025, what would you say to an immersion in the heart of the Middle Ages? In Seine-et-Marne, the town of Provins and its medieval city, a UNESCO World Heritage Site, unveils its program of visits and events for the weekend of September 20 and 21, 2025.

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

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

Heritage Days 2025 in Beynes (78): the program

A small town in the heart of the Yvelines region has a few medieval gems not to be missed during your Heritage Days 2025. Here's the program of visits to Beynes.

Heritage Days 2025: visit the Paris Bourse du Travail

Discover the Paris Bourse du Travail on tours organized during the Journées du Patrimoine 2025, on September 20 and 21.