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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The Summerhouse on the Capitol Grounds surrounded by pink azalea flowers.
A few ideas to help you in planning a visit to Capitol Hill.

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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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Small Business Industry Day at AOC
The Architect of the Capitol is hosting a Small Business Day on Tuesday,...

U.S. Supreme Court

The U.S. Supreme Court met in the Capitol Building from 1801 until its own building was completed and occupied in 1935. An additional building, named for Thurgood Marshall, opened in 1992 to house agencies that support the work of the U.S. Federal Courts.

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