Journées du Patrimoine Val-d'Oise
Edition 2026 Chocolate Science Esports

Journées du Patrimoine Val-d'Oise

Exceptional openings and visits of the heritage of Val-d'Oise

Cergy — Val-d'Oise (95) Since 1984
Dates 19 Sep — 20 Sep 2026
Location Cergy (95)
Prices Free
Status Confirmed

About Journées du Patrimoine 95

The European Heritage Days in Val-d'Oise open the doors of hundreds of monuments, historical sites, castles, abbeys, museums and places usually closed to the public every September. The department, rich in exceptional heritage between medieval Île-de-France and 19th-century architecture, offers a weekend of free discoveries that attracts tens of thousands of visitors to emblematic places and hidden treasures of Val-d'Oise.

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The Journées du Patrimoine Val-d'Oise: two days to explore a territory

The European Heritage Days in Val-d'Oise are one of the most popular cultural events in the department. Every third weekend of September, in accordance with the national calendar coordinated by the Ministry of Culture, hundreds of sites open their doors for free or offer special activities for the general public.

Val-d'Oise has an exceptionally rich heritage, often unknown to the general public. Founded on a territory that was at the heart of medieval and royal Île-de-France, the department's treasures include:

  • Castles and manors such as the Château de la Roche-Guyon, the Château d'Écouen (National Museum of the Renaissance), the Château de Méry-sur-Oise, or the Château de Thury-en-Valois
  • Abbeys and priories such as the Abbey of Maubuisson in Saint-Ouen-l'Aumône, the Abbey of Royaumont in Asnières-sur-Oise, and the Abbey of Valprofonde
  • Museums such as the Departmental Archaeological Museum in Guiry-en-Vexin, the museum of the painter Daubigny in Auvers-sur-Oise, or the Van Gogh House
  • Classified natural and landscape sites
  • Civil and industrial buildings bearing witness to contemporary history

The national theme adapted locally

Each year, the Heritage Days are organized around a national theme — "Living Heritage", "Heritage of Itineraries, Routes and Networks", "Maritime Heritage", etc. — which each territory adapts to its own specificities. In Val-d'Oise, this annual theme is an opportunity to highlight little-known aspects of local heritage and invite new discoveries.

Guided tours and activities

Beyond simple openings, the Journées du Patrimoine du Val-d'Oise offer numerous activities: guided tours commented by historians and specialists, workshops for children to discover heritage trades, historical reenactments, concerts in heritage settings, and temporary exhibitions.

Free access

In the spirit of the European Heritage Days, all activities offered by participating sites are free or at reduced prices. This free access is a unique opportunity for the inhabitants of Val-d'Oise to discover places that are usually ticketed or closed, and for external visitors to explore a department often overlooked in favor of Paris and its immediate surroundings.

Journées du Patrimoine 95 — edition 2026

European Heritage Days 2026 in Val-d'Oise: exceptional openings of heritage sites, free guided tours and activities throughout the department. Program to be confirmed.

Journées du Patrimoine Val-d'Oise 2026

The European Heritage Days 2026 will once again allow free exploration of the heritage riches of Val-d'Oise. Castles, abbeys, museums, historical monuments, and unusual sites will open their doors on September 19 and 20, 2026, for an exceptional weekend of discovery.

The detailed program will be published on the website of the Ministry of Culture and the Department of Val-d'Oise in the fall of 2026.

Prices Journées du Patrimoine 95 2026

Free at most sites.

Practical information — Journées du Patrimoine 95

Practical information

Participating sites

Hundreds of sites participate in the Heritage Days in Val-d'Oise. The complete list is published on the website of the Ministry of Culture and the Department of Val-d'Oise.

Access

Varies by site. Consult the detailed program on journeesdupatrimoine.culture.fr for access information for each location.

Prices

Free admission to most sites for both days of the Heritage Days.

Contact

Department of Val-d'Oise — Cultural Department
2 avenue du Parc, 95032 Cergy
Tel: 01 34 25 30 30
Website: valdoise.fr

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Where does it take place — Journées du Patrimoine 95

Sites patrimoniaux du Val-d'Oise

Divers sites du département, 95000 Cergy

Contact Journées du Patrimoine 95

Tel
+33 1 34 25 30 30

Journées du Patrimoine 95 in brief

Chocolate Science Esports Folk Traditions Folklore Family Outdoor Val-d'Oise

History of Journées du Patrimoine 95