If you love French literature, no visit to the capital would be complete without a visit to its largest literature collection. The Bibliothèque Nationale is an impressive building commissioned by president François Mittérand. Not only can you visit the reading rooms for a small fee, but the library also has occasional exhibits on writers throughout the large building.
We came here close to closing time just to check it out since we happened to have been in the area. The design of the building is pretty unique with four large glass towers that are connected by long, never ending corridors. There's a very large garden courtyard in the center of the four buildings which looked awesome, but was closed off when we were there. There was nice terrace seating as well overlooking the courtyard. Plus I read they have 14 million books here! They also host special exhibitions which were already closed when we got there unfortunately.