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

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U.S. Capitol Dome was constructed with 8,909,200 pounds of ironwork bolted together in a masterpiece of American will and ingenuity.
The U.S. Capitol’s dome made of cast iron was designed by Thomas U. Walter and...

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A virtual Map of Capitol Hill from above
View a map of the U.S. Capitol and other buildings and grounds cared for by 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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Photo of damage to be restored.
The focus of the Rotunda Restoration will be to remove hazardous materials (...

Employment

Twenty-four hours a day – seven days a week – 365 days a year, the more than 2,600 people of the Architect of the Capitol (AOC) serve the nation as proud stewards of some of the most iconic buildings and grounds in the world.

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