The world's largest library – with 29 million books and counting – awes in both scope and design. The centerpiece is the 1897 Jefferson Building. Gawk at the Great Hall, done up in stained glass, marble and mosaics of mythical characters, then seek out the Gutenberg Bible (c 1455), Thomas Jefferson's round library and the reading room viewing area. Free tours of the building take place between 10:30am and 3:30pm on the half-hour.
A groovy underground tunnel connects the Madison Building, where the Madison Cafe hides on the 6th floor and offers killer views of the city. Room 140 is where staff members issue library cards to anyone who wants to do research. A tunnel also runs to the Capitol Visitor Center.
