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

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A crowd of visitors walking through the Capitol Visitor Center.
The U.S. Capitol Visitor Center provides a welcoming and educational...

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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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An AOC worker mowing the grass on the grounds of the U.S. Capitol
The roles and responsibilities of the Architect of the Capitol cover an...

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

Doing Business with AOC