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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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The Summerhouse on the Capitol Grounds surrounded by pink azalea flowers.
A few ideas to help you in planning a visit to Capitol Hill.

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

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Photo of Saccharum officinarum.
Discover the history, botany, production and processing of sugarcane, sugar...

For Researchers & Students

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    Virtual Capitol

    Explore the buildings of Capitol Hill through a historic timeline...

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    Capitol Hill Neoclassical Architecture

    The definitive architectural style on Capitol Hill is neoclassical...

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    Capitol Rotunda

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

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For Researchers and Students