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

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The Cannon House Office Building, completed in 1908, is the oldest congressional office building as well as a significant example of the Beaux Arts style of architecture.
The Cannon House Office Building, completed in 1908, is the oldest...

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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 the Capitol dome with an enclosure.
Update: March 2015 Scaffoldin​g and Restoring PhaseThe Dome Restoration...

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Black and white photograph of Union Troops lined up in front of the Capitol in 1861
Weekdays at 3 p.m. — In honor of the 150th Anniversary of the Civil War, a...
See updates as workers remove cast iron and make repairs to the U.S. Capitol Dome.
Learn more about the women depicted in the art of Capitol Hill during March, Women's History Month.
Get the latest information on current work underway to renew the Cannon House Office Building.
Discover all of the ways the AOC cares for the iconic landmarks, buildings and grounds of Capitol Hill.
Photo of the U.S. Capitol from January 30, 2015.
Photo of the Suffrage Monument Unveiling in 1921.
Photo of the crane being put into place in the courtyard of the Cannon House Office Building.
Decorative Painters in the Old Senate Chamber
Photo of the U.S. Capitol from January 30, 2015.
See updates as workers remove cast iron and make repairs to the U.S. Capitol Dome.
Photo of the Suffrage Monument Unveiling in 1921.
Learn more about the women depicted in the art of Capitol Hill during March, Women's History Month.
Photo of the crane being put into place in the courtyard of the Cannon House Office Building.
Get the latest information on current work underway to renew the Cannon House Office Building.
Decorative Painters in the Old Senate Chamber
Discover all of the ways the AOC cares for the iconic landmarks, buildings and grounds of Capitol Hill.
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