Serving Congress and the Supreme Court, preserving America's Capitol, and inspiring memorable experiences

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Thurgood Marshall Building
The Thurgood Marshall Federal Judiciary Building houses agencies that support...

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Prohibited Items at the U.S. Capitol Building
In order to ensure the safety of visitors and staff and to preserve the...

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Dr. William Thornton
 The Architect of the Capitol (AOC) is the builder and steward of America’s...

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Union Troops at the Capitol - 1861
Weekdays at 3 p.m. — In honor of the 150th Anniversary of the Civil War, a...
  • The AOC maintains the grounds of the U.S. Capitol
  • 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.