Here comes one of the events we look forward to with anticipation: the Journées du Patrimoine. This cultural event that spans across Europe awaits us every year in September. For a weekend, we go on a quest for the finest treasures of our heritage through often-free visits, the exceptional openings of places usually closed to the public, and original activities. And of course, Paris and all of Île-de-France are in on it! So set your calendars: September 19 and 20, 2026, and enjoy the Journées du Patrimoine.
If you're passionate about architecture, you won't want to miss this must-attend moment! The most beautiful buildings and the most surprising structures reveal their secrets for the occasion. Lots of architectural tours await you in Paris and across the entire region. So eager to discover the program for this new edition? Perfect, we’ve put together a selection of beautiful architectures to discover in the Île-de-France region for the Journées du Patrimoine 2026!
To make sure you don't miss out on any great outings, we invite you to bookmark this guide and consult it regularly right up to the big day!
Heritage Days 2026 at the Paris Court of Appeal — Hôtel de Beauvais
For Heritage Days 2026, set off to discover the Hôtel de Beauvais, home to the Paris Administrative Court of Appeal since 2003. Built in 1654 for Catherine de Beauvais, the listed monument overflows with trompe l’oeil effects and crafted symmetry. Mark your calendar for the weekend of September 19–20, 2026, for this exceptional opening not to be missed. [Read more]
Heritage Days 2026 at La Roche House – Le Corbusier Foundation in Paris
As the season kicks off, heritage meets curiosity. Among the gems to visit, La Roche House, Le Corbusier’s modernist residence in the 16th arrondissement, opens its doors for the European Heritage Days. On September 19 and 20, 2026, museums, grand town houses, and unusual venues invite free exploration for one unforgettable weekend. A must-see opportunity for architecture enthusiasts! [Read more]
European Heritage Days 2026 at the Niemeyer Space, the Communist Party’s Paris headquarters
For the 2026 Heritage Days, take a tour of the iconic Niemeyer Space, the headquarters of the French Communist Party. Designed by Brazilian architect Oscar Niemeyer, this futuristic building with bold, sculptural forms is opening its doors for an exceptional, immersive experience. [Read more]
Heritage Days 2026: free performance at the Château de Champs-sur-Marne (Seine-et-Marne)
For Heritage Days 2026, the Château de Champs-sur-Marne unveils an artistic program to explore over the weekend of September 19–20, 2026. [Read more]
Heritage Days 2026 at Saint-Sulpice Church in Paris, one of the Left Bank’s treasures
For Heritage Days 2026 in Paris, Saint-Sulpice Church invites visitors to uncover its secrets through special tours on Saturday, September 19 and Sunday, September 20, 2026. [Read more]
Nice visits!
Dates and Opening Time
From September 19, 2026 to September 20, 2026
Prices
Free
