The Library of Congress, Washington DC is one of the largest and most beautiful libraries in the world. It contains one of the world’s largest collection of books in any genre, it is also a building of stunning beauty. The best part about this library is that it is completely free to the public. It is also a museum, home to a number of exhibits on North American History. It is easy to lose yourself in not only the splendor of the building, but also in the immense amount of knowledge housed there.