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Outside view of the Longworth House Office Building with a clear blue sky in the background.
Completed in the spring of 1933, the Longworth House Office Building is the...

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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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Photo of Capitol Hill steps.
Download a PDF of the full list.

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Photo of US Capitol Building made of plant materials.
The U.S. Botanic Garden’s annual holiday exhibit is on display November 27...

For Researchers and 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