Journées du Patrimoine 2025 in Paris: a visit to the sublime Bibliothèque Mazarine

New "Journées du Patrimoine" in Paris, and new tours in prospect. This Saturday, September 20 and Sunday, September 21, 2025, why not discover the sublime Bibliothèque Mazarine, France's oldest public library!

For the 42nd edition of the Journées du Patrimoine (Heritage Days) in Paris, visitors are invited to rediscover our heritage, with tours and events at some of the capital's most beautiful sites. Museums, châteaux or institutes, visitors are spoilt for choice! For an entire weekend, lovers of our rich heritage will be able to enter unique places, some of which are rarely open to the general public. It's a unique experience you're sure to remember!

Journées du Patrimoine 2025 in Paris (75): full schedule of visits by arrondissement
For the Journées du Patrimoine 2025 in Paris, the capital's historic and artistic monuments and landmarks are opening their doors (often free of charge) to let us in on their secrets. Don't miss this not-to-be-missed event, scheduled for the weekend of September 20 and 21, 2025, on the theme of "Architectural Heritage". [Read more]

Journées du Patrimoine 2025: events in Paris libraries and archives
During the Journées du Patrimoine in Paris, libraries and archives will be revealing their secrets this weekend, September 20 and 21, 2025. Come and discover these architectural gems and their treasures! [Read more]

For budding historians, there's nothing like a visit to the sublime and inescapable Bibliothèque Mazarine in Paris's 6th arrondissement. Little known to Parisians, this incredible library is open and accessible to the public all year round. Visit the Quai de Conti on Saturday September 20 and Sunday September 21, 2025, from 9am to 6pm, for a free tour of France's oldest public library.

Nestled on the edge of the Latin Quarter, opposite the Louvre, the Bibliothèque Mazarine is now part of the Palais de l'Institut de France , and is one of the richest libraries in France. Originally the personal library of Cardinal Mazarin, it was opened to the public in 1643.

A true Parisian jewel, it is useful for all researchers looking for a quiet place to work or recharge their batteries, surrounded by millions of books that are part of history. A study and research library specializing in historical disciplines, the Mazarine Library has never ceased to develop since its creation. Almost 350 years later, it has become a veritable museum of books, and offers an exceptional setting to discover during the Journées du Patrimoine 2025.