It’s true that Paris has no shortage of beautiful libraries. From the National Library of France (BNF) and its Richelieu Hall —reopened in 2022 after 12 years of renovations— to the Sainte-Geneviève Library, which is over 500 years old, students, professors, book lovers, and history buffs alike are in for a real treat. Among the most hidden gems is the library at Paris City Hall. Located on the 5th floor of the building, this library— which is over 200 years old—is free to visit!
A hidden library dating back 200 years
Opened in 1801 and then destroyed by fire 70 years later during the terrible blazes that devastated much of City Hall, this hidden library is truly a survivor. Its reading room, designated a Historic Monument, spans 600 m² and is bathed in natural light throughout the day.

Its magnificent wood-paneled decor, featuring moldings and clever trompe-l’œil effects, immediately gives it the classic look one dreams of for libraries. But behind the wooden paneling lies a modern metal structure, similar to the Eiffel Tower. Reserved for civil servants and researchers for many years,the City Hall library has been open to the public since 1985. With its 600,000 volumes, including priceless manuscripts and documents dating back to the time of Louis XIV, it is a true treasure of cultural heritage.
To enter the library, simply present an ID card (or other form of identification). This will allow you to obtain a Paris library card and come browse the books in this historic setting . A truly magnificent place to discover.
Location: 4 rue Lobau, 75004 Paris