University of California San Diego
Reasons this library is cool: 1. It looks like a spaceship and 2. It is named after Dr. Seuss (well, more accurately, Audrey and Theodor Seuss Geisel). The building opened to students in 1970 and rises 110 feet above the ground.
Notable Users: Milo Aukerman, lead singer of the Decendents and Ph. D in biochemistry.