Stewards of the iconic buildings and grounds of Capitol Hill since 1793.

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Thurgood Marshall Building
The Thurgood Marshall Federal Judiciary Building houses agencies that support...

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A crowd of people visiting the Capitol during visitor hours
Visitor Hours for the Buildings on Capitol Hill.

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Painted portrait of Dr. William Thornton
 The Architect of the Capitol (AOC) is the builder and steward of America’s...

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Eric Dinerstein, Director, Biodiversity and Wildlife Solutions, RESOLVE posing with some plants
Learn why some species are so scarce and others are so common November 13 at 2...

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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.