The Journées du Patrimoine are back with a new rendezvous this weekend of 19–20 September 2026. Curious minds and enthusiasts can then enjoy the 43rd edition of this must-attend September event. As you might expect, in Paris and in Île-de-France, a vast program awaits young and old across the four corners of the Île-de-France region. So the question is: what to do this year for the Journées du Patrimoine?
It's worth noting that each edition is punctuated by numerous free visits, unusual events and exceptional openings. This time, we're inviting you to conquer the châteaux of the Ile-de-France region, and more specifically those located in the 94 département. Yes, the Val-de-Marne has no shortage of nuggets worth visiting, and now is the time to discover the treasures that make up its heritage.
Here we spotlight the Val-de-Marne castles taking part in the 43rd edition of Heritage Days and their schedules. By the way, remember to check this page regularly: it updates as announcements come in and as we make new discoveries. All that remains is to put together your itinerary! And for more ideas on things to do in the Val-de-Marne for Heritage Days visit the Val-de-Marne for Heritage Days!
Heritage Days 2026: a sound and light show at Château de Haute Maison (94)
Discover the history of the Château de Haute-Maison in Sucy-en-Brie, Val-de-Marne, through a sound-and-light show slated for September 19–20, 2026, featuring nearly 40 artists on stage. [Read more]
Heritage Days 2026: a stroll through Château d'Ormesson, a temple of literature
The Château d'Ormesson is offering paid guided tours on Saturday, September 19 and Sunday, September 20, 2026, as part of the 43rd Heritage Days. A family residence dating back to the 16th century, this château is an integral part of the town of Ormesson-sur-Marne and its heritage! [Read more]
Heritage Days 2026: weekend activities at the Château de Vincennes (94)
For the 43rd Heritage Days, the Château de Vincennes — home to Europe’s tallest keep — invites you to a rich cultural exploration of the medieval monument. See you this weekend, September 19–20, 2026. [Read more]
Dates and Opening Time
From September 19, 2026 to September 20, 2026
Prices
Free
