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

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The United States Capitol in 1846, with its original dome designed by Charles Bulfinch
Throughout the U.S. Capitol Building’s 220-year history, there have been many...