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

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Old Senate Chamber designed by Benjamin Henry Latrobe, this room was home to the U.S. Senate from 1819 until 1859 and later to the U.S. Supreme Court from 1860-1935.
Located north of the Capitol Rotunda is the richly decorated Old Senate...

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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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A view of the Brumidi Corridors on the first floor of the Senate wing of the Capitol
Weekdays at 2 p.m. — A special tour of the Brumidi Corridors on the first floor...
The U.S. Capitol Dome is undergoing a multi-year restoration.
AOC masons give much needed repair to the Olmsted Terrace walls around the Capitol Building.
A holistic approach, recognizing the delicate balance between preservation and modernization.
Caring for the iconic landmarks, buildings and grounds of Capitol Hill.
scaffold that will reach, and eventually cover, the entire Capitol Dome.
AOC Stonemason Repairs Olmsted Terrace
"Fountain of Light and Water" – commonly called the Bartholdi Fountain.
Decorative Painters in the Old Senate Chamber
scaffold that will reach, and eventually cover, the entire Capitol Dome.
The U.S. Capitol Dome is undergoing a multi-year restoration.
AOC Stonemason Repairs Olmsted Terrace
AOC masons give much needed repair to the Olmsted Terrace walls around the Capitol Building.
"Fountain of Light and Water" – commonly called the Bartholdi Fountain.
A holistic approach, recognizing the delicate balance between preservation and modernization.
Decorative Painters in the Old Senate Chamber
Caring for the iconic landmarks, buildings and grounds of Capitol Hill.
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