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!
