The Great Hall inside the Thomas Jefferson Building of the Library of Congress, Washington, D.C. This building is the oldest of the Library's three buildings and is known for its elaborately decorated facade and interior, for which more than forty American painters and sculptors produced commissioned works of art. Originally called simply the "Library of Congress Building" its name was changed to honor former President Thomas Jefferson, who had been a key figure in the establishment of the Library in 1800.Photo credit: Diliff