That said, it is a beautiful 580,000 square foot underground addition to the Capitol. The cost ballooned from $265 million to $621 million, but who is surprised by that? It has a multimedia gallery, a 530 seat cafeteria [better than the Supreme Court's 50 seats], two gift shops, two orientation theaters and 26 restrooms. A third of the facility is set aside for Congress. The entrance is across First Street from the Supreme Court and the Library of Congress.
The Capitol Visitor Center contains about 3/4 as much space as the historic Capitol and is open from 8:30 a.m. to 4:30 p.m. Monday through Saturday, except for Christmas Day, New Year's Day, Inauguration Day and Thanksgiving. Tours of the U.S. Capitol are conducted from 8:50 a.m. to 3:20 p.m., Monday through Saturday. (The Wall Street Journal 12/2/08)