Stewards of the iconic buildings and grounds of Capitol Hill since 1793.

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The Summerhouse, a hexagon-shaped brick structure set into the sloping hillside of the West Front lawn on the Senate side of the U.S. Capitol Building, has offered rest and shelter to travelers for over a century.
The Summerhouse, a hexagon-shaped brick structure set into the sloping...

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A crowd of people visiting the Capitol during visitor hours
Please note: Many of these Capitol Hill buildings are working office buildings...

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Photo of AOC employee Richard Edmonds.
  The Architect of the Capitol magazine, Foundations & Perspectives,...

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Masons work on Olmsted Terrace Steps
AOC is undertaking a project to repair, clean and preserve the Olmsted Terrace...

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