The United States Capitol building features a central rotunda below the Capitol dome. Built between 1818 and 1824, the rotunda has been described as the Capitol's "symbolic and physical heart".
The rotunda is connected by corridors leading south to the House of Representatives and north to the Senate chambers. To the immediate south is the semi-circular National Statuary Hall, which was the House of Representatives chamber until 1857. To the northeast is the Old Senate Chamber, used by the Senate until 1859 and by the Supreme Court until 1935.
The rotunda is 96 feet (29 m) in diameter, rises 48 feet (15 m) to the top of its original walls and 180 feet 3 inches (54.94 m) to the canopy of the dome, and is usually visited daily by thousands of people. The space is a national showcase of art, and includes numerous historical paintings and sculptures. It is also used for ceremonial or public events authorized by concurrent resolution of both houses of congress, including the lying in state of honored dead.