Do you loveurbex, and the mysterious places that urban explorers bring to light? As part of the Journées du Patrimoine (Heritage Days), we're offering you the chance to live this experience to the full, by discovering disused spots, ruins and buildings usually off-limits to the public, whose secrets arouse our curiosity. You'll be able to explore the underbelly of the region without risk, and even set out to conquer those places that are the source of unanswered questions, and which you may regularly pass by without ever being able to enter.
The Journées du Patrimoine (Heritage Days) are an opportunity for enthusiasts and the curious alike to take advantage of a wide range of cultural opportunities. Paris and the surrounding region will not miss this opportunity to showcase its finest treasures through a vast program of free visits, unique experiences andexceptional openings.
Over the course of a weekend, the general public is invited to take over museums, monuments, castles, embassies, ministries, libraries, fashion houses and much more, to discover their history and behind-the-scenes stories. With guided tours, special events and workshops for young and old, there's no shortage of imagination for a weekend rich in discovery. The next 42nd edition awaits you this weekend, September 20-21, 2025.
Journées du Patrimoine 2025 in Paris: free and unusual tours of the sewer museum
The Musée des égouts de Paris is taking part in the latest edition of the Journées du Patrimoine! Join us on Saturday September 20 and Sunday September 21, 2025 for unusual tours under the sidewalks of Paris. [Read more]
Journées du Patrimoine 2025 in Paris: the Regard de la Lanterne, a little-known site in the 19th arrondissement
Want to get off the beaten track during the Journées du Patrimoine? Why not visit the "regard de la Lanterne", a secret site in the 19th arrondissement of Paris? Here's the program that awaits you on Saturday, September 20, 2025. [Read more]
Heritage Days 2025: the program at Fort de Cormeilles-en-Parisis (95)
Visit Fort de Cormeilles during the Journées du Patrimoine 2025, on Saturday September 20 and Sunday September 21. This former military fort, now owned by the Agence des Espaces Verts de la région Ile de France, is opening its doors to families and history buffs, free of charge of course! Click here for the program. [Read more]
Journées du Patrimoine 2025: tours of the former Babcock factories (93): the program
On the occasion of the Journées du Patrimoine 2025, take advantage of free tours of the former Babcock & Wilcox factories, on Saturday September 20 and Sunday September 21. This unique industrial site, located in the heart of La Courneuve, will be unveiled with a special program. [Read more]
Journées du Patrimoine 2025 visit to an air-raid shelter in Bourg-la-Reine, Hauts-de-Seine, France
During the Journées du Patrimoine 2025, plunge into history and discover a genuine World War II air-raid shelter in Bourg-la-Reine, on September 20 and 21, 2025. An exceptional visit well worth the detour! [Read more]
Journées du Patrimoine 2025 in the Paris catacombs: themed tours on the program!
The Journées du Patrimoine (Heritage Days) take you deep into the catacombs of Paris. Discover the program that awaits you in the capital's underground passages on the weekend of September 20 and 21, 2025. Are you ready for themed guided tours of this mysterious place in the capital? [Read more]
Heritage Days 2025 at the Maison du Fontainier, at the heart of water history in Paris
Ready to delve into the history of Paris during the Journées du Patrimoine 2025? What better way to do so than to visit the Maison du Fontainier, a major site in the history of water in the capital. Join us this weekend, September 20 and 21, 2025, to discover this unusual place. [Read more]
Heritage Days 2025: discover the King's cellars, an underground tour in Sèvres (92)
In Sèvres, history is even hidden in the town's basements... During the Journées du Patrimoine, this weekend of September 20 and 21, 2025, visit the King's cellars. [Read more]
Heritage Days 2025: visit the secret Station Cinéma, used for film shoots
Discover one of the most famous film sets in Paris, by visiting Station Cinéma, the metro station dedicated to film and commercial shoots in Paris. Join us on September 20 and 21, 2025, during the Journées du Patrimoine, to visit this secret RATP location. [Read more]
Heritage Days 2025 at the Château royal de Montceaux (77): discover the Château des Trois Reines
How about exploring the remains of the Château Royal de Montceaux? This historic site in Seine-et-Marne is opening its doors to us for the Journées du Patrimoine (Heritage Days) on the weekend of September 20 and 21, 2025. [Read more]
Heritage Days 2025: discover the conical air-raid shelter at Villenoy (77)
Would you like to discover a nationally unique monument in the Seine-et-Marne region? The famous Villenoy conical air-raid shelter is opening its doors to you this September 20, as part of the 2025 Heritage Days! [Read more]
Heritage Days: exceptional visit to the Bois-Colombes air-raid shelter (92)
History buffs and WWII enthusiasts will be able to take advantage of the Heritage Days on September 20 and 21, 2025, with an exceptional visit to the Bois-Colombes air-raid shelter. We tell you all about it! [Read more]
Heritage Days 2025: Le Nymphée nymphée, shell grotto in Viry-Châtillon (91)
The Journées du Patrimoine (Heritage Days) make a comeback on the weekend of September 20 and 21, 2025 in Paris and the Ile-de-France region. This is your chance to explore the Nymphée Nymphée, a mysterious shell-covered cave in Viry-Châtillon, Essonne. What an unusual discovery! [Read more]
Dates and Opening Time
From September 20, 2025 to September 21, 2025
