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

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U.S. Capitol Dome
The U.S. Capitol’s dome made of cast iron was designed by Thomas U. Walter and...

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Capitol Visitor Center
The Office of Congressional Accessibility Services (OCAS) provides a variety...

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Stephen T. Ayers, FAIA, LEED AP, Architect of the Capitol
On February 24, 2010, President Barack Obama nominated Mr. Ayers to serve as...

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AOC employees plan renovations to Representative Tammy Duckworth's Office
A team of tradecrafts experts at the AOC transform an office into a completely...

U.S. Capitol Building

The United States Capitol Building is located in Washington, D.C., at the eastern end of the National Mall on a plateau 88 feet above the level of the Potomac River. Learn about the history, art and architecture of the U.S. Capitol Building here, and take an interactive look at the building through the Architect's Virtual Capitol.

For information on touring the U.S. Capitol building visit: www.visitthecapitol.gov.

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