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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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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AOC Capitol jurisdiction decorative painters create a faux marble fireplace.
Find out how the AOC's painters use tricks of the trade to turn wood into...

History

Construction of the U.S. Capitol Building began in 1793 atop Jenkins’ Hill, now often referred to as “Capitol Hill.” Since then many additional buildings have been constructed around this site to serve Congress and the Supreme Court. The last major addition being the Capitol Visitor Center, completed in 2008.

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