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

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The United States Capitol Building is located in a 58-acre park that was landscaped by Frederick Law Olmsted during the period 1874-1892.
The United States Capitol Building is located in a 58-acre park that was...

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A virtual Map of Capitol Hill from above
View a map of the U.S. Capitol and other buildings and grounds cared for by the...

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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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The Capitol Crypt, which now houses statuary and exhibitions, was once used as an informal storage space where bicycles were parked, seen here circa 1900.
The term “crypt” has long referred to a space beneath the main floor of a...