Calling all history buffs and budding explorers: the Heritage Days are back, inviting us to meet on the weekend of September 19–20, 2026 for a 43rd edition that already looks promising. Each year, Paris and the entire Île-de-France participate in this must-see event, offering numerous free visits, unconventional activities, and exceptional openings to both private and public venues. From must-see museums to great institutions and even hidden monuments, the weekend will showcase the finest treasures of our heritage and reveal their secrets to visitors.
It's also an opportunity to conquer the castles of the Île-de-France region , including those in the 92 département. Yes, in Hauts-de-Seine , a number of historic estates are taking part in the Journées du Patrimoine (Heritage Days), unveiling their respective programs for this exciting new edition!
The perfect opportunity to discover these historic treasures of the Paris region. Stay tuned, the selection is updated as we make announcements and discoveries! And for more ideas for Heritage Days 2025 in the Hauts-de-Seine region, click here!
Heritage Days 2026: Workshops and tours at the Château de Malmaison and Bois-Préau
For Heritage Days 2026, head to the Hauts-de-Seine, at the Château de Malmaison and Bois-Préau. Step back in time and come marvel at this monument on September 19 and 20. [Read more]
In Boulogne-Billancourt, follow in the footsteps of Paul Belmondo for the 2026 Heritage Days.
Dive into the world of sculptor Paul Belmondo during Heritage Days 2026 and explore his work in Boulogne-Billancourt for this weekend of September 19–20, 2026. [Read more]
Heritage Days 2026: The Departmental Estate of Sceaux (92) unveils its program
On the occasion of the 2026 Heritage Days, the Sceaux Departmental Estate is offering free activities for the whole family, to be enjoyed on September 19 and 20. [Read more]
The 2026 Heritage Days program at Domaine de la Reine Margot in Hauts-de-Seine (92)
The European Heritage Days are also taking place in Hauts-de-Seine. In Issy-les-Moulineaux, the Domaine de la Reine Margot is unveiling a special program for the weekend of September 19–20, 2026. [Read more]
Heritage Days 2026 at Château des Tourelles in Bois-Colombes (92): Reservations open
Château des Tourelles invites you to the 2026 Heritage Days in Hauts-de-Seine. Note that guided tours require advance booking! Here are the details! [Read more]
Dates and Opening Time
From September 19, 2026 to September 20, 2026
Prices
Free
