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

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Landing of Columbus
This painting depicts Christopher Columbus and members of his crew on a beach...

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Visitor Hours for the Buildings on Capitol Hill
Visitor Hours for the Buildings on Capitol Hill.

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The AOC maintains 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...

House Office Buildings

The first congressional office buildings were constructed immediately after the turn of the century to relieve overcrowding in the Capitol. Previously, members who wanted office space had to rent quarters or borrow space in committee rooms. The Cannon House Office Building, completed in 1908, is the oldest congressional office building, with the Longworth, Rayburn and Ford House Office Buildings being added later to house the growing Congress.

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