And we’re off again! The Heritage Days are landing in Paris and Île-de-France on the weekend of September 19-20, 2026 for a new and 43rd edition. The perfect opportunity for enthusiasts and the curious alike to make the most of a bumper program of free tours, quirky activities and exceptional openings at the heart of the treasures that make up the Île-de-France heritage.
Every year, venues of all kinds enter the dance, and it's hard not to find a program to match your passion. From must-see monuments to little-known nuggets and major institutions, we take the opportunity to explore our heritage from every angle.
And there's no shortage of châteaux to choose from. What's more, the Heritage Days are also a great opportunity to visit the treasures of the Île-de-France region. And at Essonne, you can discover the history and treasures of some of the region's most magnificent buildings through a program specially designed for the occasion. We'll take you on a tour of the castles in the 91 département that are waiting to welcome you for the Heritage Days. By the way, as this page is updated according to announcements and discoveries, please consult it regularly to discover even more ideas for outings.
Special openings and a performance at Domaine de Chamarande for Heritage Days 2026
Looking for a great family outing during Heritage Days 2026? Then head to the Domaine de Chamarande in Essonne: the château and its grounds reveal their schedule for the weekend of September 19–20, 2026. [Read more]
Heritage Days 2026 at Villeconin's medieval castle (91): the program!
The Château de Villeconin, located in Essonne, invites us to make the most of Heritage Days by highlighting its treasures through a weekend program of tours on 19 and 20 September 2026. [Read more]
Bierville Castle to Open Its Doors for Heritage Days 2026
The European Heritage Days return on 19 and 20 September 2026. On this occasion, Château de Bierville, in Boissy-la-Rivière, Essonne, will open its doors to visitors for an exceptional showing. A rare opportunity to discover a site steeped in history, closely tied to Île-de-France heritage and the social commitments of the 20th century. [Read more]
Giant shows and games at the Château de Saint-Jean de Beauregard for Heritage Days
On the occasion of the 43rd edition of Heritage Days, Château Saint-Jean de Beauregard invites you to visit on September 19 and 20, 2026. As part of these discovery-focused days, guided tours of the castle and its gardens will be offered. [Read more]
Heritage Days 2026 at the Château and Courances Park (91): what’s on
Take advantage of the 2026 Heritage Days to discover a haven of peace: the Château and Parc de Courances, in Essonne (department 91), will open their doors on 19 and 20 September 2026 for paid guided tours. [Read more]
Montagu Castle in Essonne reveals its lineup for the 2026 European Heritage Days.
This Essonne treasure reveals its secrets for the 43rd edition of Heritage Days: Montagu Castle invites you to join in and unveils its program for the weekend of September 19–20, 2026. [Read more]
Treasure hunt and music at Victor Hugo's literary house for Heritage Days
Victor Hugo's literary house, in Bièvres, Essonne, will open its doors free to the public on September 19 and 20, 2026, for Heritage Days. [Read more]
Market, vintage cars and sheepdogs: Heritage Days 2026 at Mesnil-Voysin Castle
The Château de Mesnil-Voysin, situated in Bouray-sur-Juine, awaits you this weekend, September 19–20, 2026, for Heritage Days. Discover this special program. [Read more]
Dates and Opening Time
From September 19, 2026 to September 20, 2026
Prices
Free
