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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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The Architect of the Capitol’s challenge is unique – maintaining aging, iconic buildings; adapting state-of-the-art technology; and increasing responsiveness to environmental, security and safety considerations in a rich historical setting.
The Architect of the Capitol's challenge is unique – maintaining aging, iconic...

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The AOC Capitol Building Mason Shop successfully relocated the Magna Carta display to the Crypt.
It took both brawn and brains to move a beautiful (and hefty) treasure when the...

Projects

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    Roof and Fifth Floor

    A protective roof covering is being erected over the existing roof. The fifth floor will be dismantled starting in July.

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    Stopple Valve System

    By deploying this new technology, a tremendous amount of natural resources will be saved.

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    Best Practices In The Field

    The Cannon Renewal team brings a 21st-century approach to field coordination and quality control as a model for the future…

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    Seeing Through Concrete

    The Cannon Renewal team is using ground penetrating radar to help workers see what's inside the concrete of the Cannon…

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Cannon Renewal Project