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

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James Madison Memorial Building
Opened in 1980, measuring 500 feet wide and 400 feet deep, the Madison...

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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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Nitrate vault at the Library of Congress Packard Campus
The Architect of the Capitol (AOC) is responsible for managing all of the...