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Dirksen Senate Office Building is a seven-story building faced in marble.
The Dirksen Senate Office Building was the second of three office buildings...

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A virtual Map of Capitol Hill from above
A map of the U.S. Capitol and other buildings and grounds cared for by the...

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

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Generator Progress May 2014
Work is underway at the northwest corner of the Library of Congress John Adams...

Explore Capitol Hill

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    About the U.S. Capitol Building

    The United States Capitol Building is located in Washington, D.C., at the...

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    Rayburn House Office Building

    The Rayburn House Office Building, completed in early 1965, is the third of...

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    Capitol Dome

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

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    Capitol Rotunda

    The U.S. Capitol Rotunda is a large, domed, circular room 96 feet in diameter...

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    Russell Senate Office Building

    The Russell Senate Office Building (built 1903-1908) is the oldest of the...

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