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

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Front view of the Russell Senate Office Building at night.
The Russell Senate Office Building (built 1903-1908) is the oldest of the...

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Snapshot of a crowd of people on a guided tour through the Rotunda of the U.S. Capitol
Official Tours of the U.S. Capitol Building are offered Monday through...

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East Front of the U.S. Capitol Building
AOC’s annual Performance and Accountability Report provides the results of the...

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Black and white photograph of Union Troops lined up in front of the Capitol in 1861
Weekdays at 3 p.m. — In honor of the 150th Anniversary of the Civil War, a...

U.S. Capitol Building

The United States Capitol Building is located in Washington, D.C., at the eastern end of the National Mall on a plateau 88 feet above the level of the Potomac River. Learn about the history, art and architecture of the U.S. Capitol Building here, and take an interactive look at the building through the Architect's Virtual Capitol.

For information on touring the U.S. Capitol building visit: www.visitthecapitol.gov.

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