Most of the U.S. Capitol's attractions are found in Exhibition Hall. the only exhibition in the nation dedicated to the history of the legislative branch. In Exhibition Hall, you'll marvel at the building's architecture with a 11-foot Capitol Dome model, view rarely-seen documents from the National Archive and Library of Congress, and learn more about Congress through interactive exhibits. The U.S. Capitol also displays the table used for President Lincoln's Second Inauguration and President Washington's gavel used in the ceremony to lay the cornerstone of the building in 1793.