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Visitors can tour many highlights on Capitol Hill without registering.
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At the AOC we are leading the effort to conserve energy across Capitol Hill.
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Close-up detail photo with Statue of Freedom during conservation in 1993.
An in-depth look at the evolution of women in art at the U.S. Capitol. First...
  • Stone Preservation on Capitol Hill

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    Stone Preservation

    Watch our video on why stone preservation across Capitol Hill is a top priority.

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  • Stone Preservation on Capitol Hill

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    Crumbling Down and Building Up

    Addressing the stone pandemic takes a team of historic preservationists, structural engineers and stonemasons, among others.

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  • Stone Preservation on Capitol Hill

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    Masonry at the AOC

    The hands-on work caring for the stone founds across Capitol Hill falls to AOC masons.

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  • Stone Preservation on Capitol Hill

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    Sandstone on Capitol Hill

    During the early years of Washington, D.C., sandstone was commonly used because could be found locally and was easy to…

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