What to do for the Heritage Days 2026? In the greater Paris area, a broad program of tours awaits, inviting discovery of the treasures of Île-de-France. For this 43rd edition arriving on the weekend of September 19–20, 2026, enthusiasts and curious minds have the chance to pack in cultural outings and great deals by exploring fascinating places. From must-see monuments to hidden spots, via historic gems, the big institutions or even temples of craftsmanship, the public is invited to explore the Île-de-France heritage inside and out.
And the castles won’t miss the ball. Plenty of tours await us inside these residences steeped in history. In Seine-et-Marne, besides the famous château de Fontainebleau, numerous estates and historic sites that deserve to be known invite us to this new edition of the Heritage Days.
We take you on a journey to discover the castles of Seine-et-Marne and the programs that await you at this not-to-be-missed cultural event in September. Stay tuned: the guide is updated as and when we make announcements and discoveries.
Heritage Days 2026: a tour and concert at Rosa Bonheur’s Château
The Rosa Bonheur Castle in Thomery is taking part in the latest edition of Heritage Days. Discover the schedule planned for 19 and 20 September 2026. [Read more]
The Château de Vaux-le-Vicomte opens its doors for Heritage Days 2026.
Take advantage of this new edition of Heritage Days to visit the Château de Vaux-le-Vicomte. On 19 and 20 September 2026, the monument will present a very special program... [Read more]
Heritage Days 2026 at the Château de Fontainebleau (77): a lively weekend at the château
The Château de Fontainebleau will take part in the 2026 Heritage Days, on September 19–20. Here’s the program for this magnificent château in Seine-et-Marne. [Read more]
Exclusive tours into the heart of a medieval castle’s dungeons for Heritage Days 2026
In the Paris region, the Château-Musée de Nemours invites visitors to an exceptional tour through the heart of its dungeons for Heritage Days 2026, on the weekend of September 19–20, 2026. Here is the program in detail! [Read more]
Heritage Days 2026 at the Royal Château of Montceaux: a glimpse into the Château of the Three Queens
How about we head off to discover the ruins of the Royal Château of Montceaux? This historic site in Seine-et-Marne opens its doors for the Heritage Days weekend on September 19–20, 2026. [Read more]
Heritage Days 2026 at Brie-Comte-Robert Castle (77): weekend program
The Château de Brie-Comte-Robert opens its doors for the 43rd edition of Heritage Days. Here is the schedule for this weekend of September 19–20, 2026. [Read more]
Heritage Days 2026 at Château de Bourron (77): discover the "little Fontainebleau"
In Seine-et-Marne, Château de Bourron invites visitors to a special Heritage Days program on Sunday, September 20, 2026. [Read more]
Heritage Days 2026: the program at the Château de Champs-sur-Marne (77)
For the 43rd Heritage Days, the Château de Champs-sur-Marne is unveiling an artistic program to be explored on the weekend of September 19–20, 2026. [Read more]
Dates and Opening Time
From September 19, 2026 to September 20, 2026
