10 The Library of Alexandria, Alexandria, Egypt

The Library of Alexandria was the greatest library in antiquity, and one of the Seven Wonders of the World. The new rebuilt Library of Alexandria hopes to one day match the precedent set by its illustrious predecessor. The Library cost $220 million to build and was completed in 2002. The Library doubles as a cultural center, and contains a planetarium, a manuscript restoration lab, art galleries and exhibition space, museums, a conference center, as well as libraries for children, young adults, and the blind. While the library contains space for over 8 million books, the library growing number of available titles currently stands at around 500,000.