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Photograph of people walking outside on a Self-Guided Tour of Capitol Hill
Visitors can tour many highlights on Capitol Hill without registering.

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A group of visitors walking in in front of the Capitol Building
Building, Infrastructure, People The Architect of the Capitol is committed to...

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

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