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

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The U.S. Capitol Rotunda is a large, domed, circular room located 96 feet in diameter and 180 feet in height located in the center of the United States Capitol on the second floor.
The U.S. Capitol Rotunda is a large, domed, circular room 96 feet in diameter...

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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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Photo of AOC employee Richard Edmonds.
  The Architect of the Capitol magazine, Foundations & Perspectives,...

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Band Photo
Evenings at the Conservatory are magical! Join us Tuesdays and Thursdays...