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

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The United States Capitol Building is located in a 58-acre park that was landscaped by Frederick Law Olmsted during the period 1874-1892.
The United States Capitol Building is located in a 58-acre park that was...

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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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Photo of Stephen T. Ayers, FAIA, LEED AP, Architect of the Capitol in front of the Capitol Building
On February 24, 2010, President Barack Obama nominated Mr. Ayers to serve as...

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Masons work on Olmsted Terrace Steps
AOC is undertaking a project to repair, clean and preserve the Olmsted Terrace...