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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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Architect of the Capitol Stephen T. Ayers, FAIA, LEED AP, reflects on the AOC...

Architecture

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    Then & Now: O'Neill House Office Building

    In 2017, care of the building was transferred from the General Services Administration to AOC.

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    AOC Moves the House Office Buildings Storerooms

    The House laborers continuously improve service delivery and efficiency, even if they have to face down a wolf to do…

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    Bringing Cannon Back to the Future

    High in the sky, about 50 feet above the roof, a crane is peeking out of the Cannon House Office…

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House Office Buildings