It's a date we all look forward to every year: the Journées du Patrimoine (Heritage Days) give us the opportunity to discover and visit the most beautiful cultural and historic sites in France and Europe! To mark the occasion, over 1,500 sites in the Île-de-France region will be opening their doors free of charge on the weekend of September 20 and 21, 2025.
If you're a lover of architecture and history, now's your chance to find out more about the châteaux of the Île-de-France region! These majestic monuments are among the must-see attractions during the Journées du Patrimoine, with guided tours, activities and games to help you delve into the history of these exceptional sites.
And there's no shortage of châteaux in the Paris region! Almost every département in the region boasts one or two palaces and royal estates. From medieval fortresses to Renaissance palaces and imperial residences, these witnesses toFrench history are true works of art waiting to be explored! What's more, the majority of these châteaux are adorned with magnificent gardens, making for a delightful stroll in the September sunshine...
With family, friends or even on your own, discover the monuments for which the region is famous. To find out which châteaux to visit during the JEP, choose from our selection of participating châteaux.



Journées du Patrimoine 2025: castles and palaces to visit in Paris
It's obvious: there are plenty of castles and palaces in Paris too. Find out which ones and discover a special program for the Journées du Patrimoine, this weekend of September 20 and 21, 2025. [Read more]



Journées du Patrimoine 2025 (Heritage Days 2025): visits to castles in Seine-et-Marne (77)
The Journées du Patrimoine (Heritage Days) also invite you to discover the châteaux of 77. In Seine-et-Marne, a great program awaits you in these royal residences: discover the ideas for outings this weekend of September 20 and 21, 2025. [Read more]



Journées du Patrimoine 2025 in the castles of Yvelines: places to see in 78
How about taking advantage of the Journées du Patrimoine 2025 to conquer the castles of the Ile-de-France region? This weekend, let's head for the Yvelines to discover the sublime residences opening their doors to us this weekend of September 20 and 21, 2025. [Read more]



Heritage Days 2025 in Essonne: discover the castles of 91
The castles of Essonne reveal their secrets during this year's Journées du Patrimoine. Here's the program for the weekend of September 20-21, 2025. [Read more]



Journées du Patrimoine 2025: visits to the heart of Hauts-de-Seine (92) castles
For the Journées du Patrimoine (Heritage Days), the châteaux and estates of the Hauts-de-Seine will be opening their doors to let you in on their secrets. Here's the program for the weekend of September 20 and 21, 2025. [Read more]



Heritage Days 2025: castles to explore in Val-de-Marne (94)
The castles of the Val-de-Marne await you for the new edition of the Journées du Patrimoine (Heritage Days) this weekend of September 20 and 21, 2025. Click here for the program! [Read more]


Heritage Days 2025: discover the castles of Val d'Oise (95)
Make the most of the Journées du Patrimoine, and head to the Val d'Oise to conquer the castles that are unveiling a special program this weekend of September 20 and 21, 2025. [Read more]
Do you already know all these castles? Discover other monuments and institutions in the region.
Dates and Opening Time
From September 20, 2025 to September 21, 2025
Prices
Free
Recommended age
For all