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

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Bartholdi Fountain and Park at night surrounded by plant life.
Bartholdi Park serves as a home landscape demonstration garden and showcases...

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A crowd of people visiting the Capitol during visitor hours
Visitor Hours for the Buildings on Capitol Hill.

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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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Eric Dinerstein, Director, Biodiversity and Wildlife Solutions, RESOLVE posing with some plants
Learn why some species are so scarce and others are so common November 13 at 2...

AOC's Work