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

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A black and white photograph of the United States Capitol in 1846.
The history of the United States Capitol Building begins in 1793. Since then,...

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A view of the Capitol Visitor Center lit up at night
The Office of Congressional Accessibility Services (OCAS) provides a variety...

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East Front of the U.S. Capitol Building
AOC’s annual Performance and Accountability Report provides the results of the...

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U.S. Marine Band - Wednesday and some Thursday Evenings
U.S. Marine Band - Wednesday and some Thursday Evenings - The 2014 series of...

What's New

  • Construction workers working on the Olmsted Terrace Stone Preservation
  • Capitol Dome Restoration
  • War of 1812

Projects

Get the latest information on AOC projects taking place across Capitol Hill.

Events

Find out about events you can attend when visiting Capitol Hill.

Our Blog

Painting
Read a blog about the art, architecture and work on Capitol Hill written by AOC’s experts.