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

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In the late 19th century the architectural style of the Thomas Jefferson Building was said to be "Italian Renaissance." Today, it is recognized as a premier example of the Beaux Arts style, which is theatrical, heavily ornamented and kinetic. It is a style perfectly suited to a young, wealthy, and imperialistic nation in its Gilded Age.
The Library of Congress began in 1800 with a small appropriation to buy...

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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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AOC Receives Historic Preservation Award
The Architect of the Capitol strives to perform all work at a high level of...

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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...
  • An AOC worker mowing the grass on the grounds of the U.S. Capitol
  • Painted portrait of Dr. William Thornton
  • AOC gardener at the U.S. Botanic Garden
  • AOC employees

AOC's Story

AOC employees at work
The Architect of the Capitol traces its roots back to the laying of the Capitol cornerstone in 1793.

AOC's Work

U.S. Capitol Visitor Center
The Architect of the Capitol serves as builder and steward of many of the nation's most iconic landmarks.