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.
Circus workshops, a market and vintage cars for Heritage Days at Château Arribas
Craving to explore Paris and the Île-de-France’s hidden treasures? On September 19 and 20, 2026, the European Heritage Days open the doors for free to historic and offbeat sites, often closed to the public. Two days to wander, marvel, and uncover unique spots, including Château Arribas. [Read more]
Heritage Days 2026: a journey back to the Middle Ages at Blandy-les-Tours Castle (77)
Blandy-les-Tours Castle comes alive for Heritage Days 2026! On September 19 and 20, come discover this fortress in Seine-et-Marne, and get ready for a fantastic program. [Read more]
Journées du Patrimoine 2026 : exploring the Keep of Moret, the former royal residence
For the 2026 Heritage Days in Seine-et-Marne, discover the Keep at Moret-sur-Loing. A medieval and unusual retreat just a stone's throw from Paris, nestled in a former royal residence. [Read more]
At the Rosa Bonheur Castle, a musical program slated for the 2026 Heritage Days!
The Rosa Bonheur Château, in Thomery, is taking part in the new edition of Heritage Days. Check out the announced program for September 19 and 20, 2026. [Read more]
This castle has made the Sun King himself jealous: it’s open to visitors for the 2026 Heritage Days.
Don't miss this new edition of Heritage Days and set out to discover the Château de Vaux-le-Vicomte. On 19 and 20 September 2026, the monument will offer a special program. [Read more]
Discover the Royal Palace of Fontainebleau for Heritage Days 2026
A weekend of activities awaits you for the 2026 Heritage Days in the Paris region on September 19 and 20. Here’s what’s planned for the occasion! [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]
Discover the Château de Brie-Comte-Robert during Heritage Days 2026.
In Seine-et-Marne, the Château de Brie-Comte-Robert is set to feature during Heritage Days over the weekend of September 19–20, 2026 — discover the program! [Read more]
Heritage Days 2026: A Sunday at Château de Bourron — the program
In Seine-et-Marne, the Château de Bourron invites visitors to a special program for Heritage Days on September 20, 2026. Here’s what you can expect. [Read more]
Guided tours and performances at the Château de Champs-sur-Marne for the 2026 Heritage Days
As Heritage Days bring to life the Paris region’s greatest treasures, the Château de Champs-sur-Marne unveils a rich program for this weekend of September 19–20, 2026. [Read more]
Dates and Opening Time
From September 19, 2026 to September 20, 2026
