For this new edition of the Heritage Days 2026, which spotlights the theme of endangered heritage and the heritage of photography, there are plenty of good tips. From Versailles to Dampierre, iconic and little-known venues will open their doors on Saturday, September 19 and Sunday, September 20, 2026.
This Île-de-France department is home to some of France's most famous monuments, including the must-see residence of the Sun King, the château de Versailles (link for details). But this palace isn’t the only treasure to discover in the Yvelines: the region also offers several other castles and estates, quirky museums museums, performance venues, enchanting gardens, and family-friendly sites... So it’s virtually impossible to get bored in the Yvelines during these Journées du Patrimoine!
This year we celebrate the 43rd edition of the Heritage Days. Haven’t you heard of this event staged in more than 50 European countries? The Heritage Days are exceptional open-house events that let us explore for free the region’s museums, castles, theaters and venues for the performing arts, as well as historic institutions, notable companies and nearby religious monuments. It’s a cultural fixture that takes place on the third weekend of September, always delivering a few pleasant surprises!
On the program, we find then guided tours, workshops and other activities that whisk us into the enchanting universe of this expansive Île-de-France department, to meet the gems of our globally unique heritage.
Heritage Days 2026 at the Versailles City Hall (78): free tours of the landmark.
The Heritage Days 2026 invite you to see Versailles in a new light. On Sunday, September 20, 2026, uncover the secrets of the royal city with an exclusive tour of the Hôtel de Ville, a historic monument and former estate of one of Louis XIV's daughters. [Read more]
Heritage Days 2026 at the Grand Stables of Versailles (78): free, self-guided visits
The Versailles Equestrian Academy and the Versailles Campuses open the doors to the Grand Stable of the Palace of Versailles for Heritage Days, on the weekend of September 19–20, 2026. Head here to see the program! [Read more]
Heritage Days 2026 at Château de Breteuil (Yvelines, 78), at the heart of Perrault’s fairy tales
Le Château de Breteuil, the place that draws us into the heart of Perrault's tales, will take part in Heritage Days on the weekend of September 19–20, 2026. Here’s the programme, but note: admission remains payable! [Read more]
Heritage Days 2026: the tour schedule at the Jean Monnet House in Bazoches (78)
On Saturday, September 19 and Sunday, September 20, 2026, the Heritage Days are back in Paris and Île-de-France: in Bazoches-sur-Guyonne, in the Yvelines, it’s a chance to discover the Jean Monnet House. [Read more]
Heritage Days 2026: Immerse yourself in Dumas's universe at the Château de Monte-Cristo (78)
The Château de Monte-Cristo, Alexandre Dumas’s home, will take part in the European Heritage Days on 19 and 20 September 2026. To mark the occasion, admission to the château will be discounted. [Read more]
Heritage Days 2026: discover the Canal Boatmen Museum in Conflans-Sainte-Honorine (78)
They're back: this weekend, Saturday, September 19 and Sunday, September 20, 2026, the Heritage Days kick off a new edition in Paris and Île-de-France. Over in Conflans (78), head to the Museum of River Barging and Inland Waterways! [Read more]
Treasure hunt and creative workshop at the CNC’s Heritage Directorate for Heritage Days.
On the occasion of Heritage Days, September 19–20, 2026, the CNC’s Directorate of Cinematic Heritage invites you to discover its work to preserve cinematic heritage. [Read more]
Heritage Days 2026: Exploring the floating chalets at Étang de la Galiotte (78)
Escape during Heritage Days—it's possible! On the weekend of September 19–20, 2026, head to Étang de la Galiotte in Carrières-sous-Poissy to discover an astonishing floating village, right up close to the nature of Yvelines. [Read more]
Heritage Days 2026: visit to the park and the vegetable garden of the Château de la Celle-Saint-Cloud (78)
On 19 and 20 September 2026, you can, exceptionally, explore the magnificent gardens of the Château de la Celle-Saint-Cloud in Yvelines, a property owned by the Ministry for Europe and Foreign Affairs that hosts heads of state! [Read more]
Heritage Days 2026: Discover the stunning Château de Neuville (78) during guided tours
During the 2026 Heritage Days, the Château de Neuville, located in Gambais in the Yvelines (78), opens its doors for exceptional guided tours on Sunday, September 20. If you’re after a cultural escape, this is the perfect plan you’ve been waiting for! Ready to discover this treasure of Yvelines heritage? [Read more]
Journées du Patrimoine 2026 à Versailles (78) : the full slate of activities
The Heritage Days are back this weekend, September 19–20, 2026, offering a chance to discover the riches of our heritage. We’re heading to Versailles in Yvelines to sample the edition’s highlights, through tours of the Château de Versailles, and also other engaging institutions on the program. [Read more]
Heritage Days 2026 at the Yvelines' castles, the program for the 78.
And what if Heritage Days 2026 were the moment to go on a quest for the Île-de-France castles? This time, we set course for the Yvelines to uncover the magnificent residences that will open their doors this weekend, September 19–20, 2026. [Read more]
The Yvelines region is teeming with sights, monuments and activities you won’t want to miss. So take advantage of this beautiful weekend to discover them all, with family or with friends!
Dates and Opening Time
From September 19, 2026 to September 20, 2026
Recommended age
For all
