Serving Congress and the Supreme Court, preserving America's Capitol, and inspiring memorable experiences

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Thomas Jefferson Building
The Library of Congress began in 1800 with a small appropriation to buy...

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Guided Tours: Buildings on Capitol Hill
Official Tours of the U.S. Capitol Building are offered Monday through...

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AOC Receives Historic Preservation Award
The Architect of the Capitol strives to perform all work at a high level of...

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Capitol Power Plant
Stephen T. Ayers, FAIA, LEED AP, Architect of the Capitol, announced on June 6...

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U.S. Capitol Map

U.S. Capitol Map

View a map of the U.S. Capitol and other buildings and grounds cared for by the Architect of the Capitol.