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

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The National Garden provides "living laboratories" for environmental, horticultural, and botanical education in a contemplative setting.
The National Garden was created as a place for visitors to experience the...

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View of the U.S. Capitol Building from above at dusk
In order to ensure the safety of visitors and staff and to preserve 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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Generator Progress May 2014
Work is underway at the northwest corner of the Library of Congress John Adams...