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

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About the National Statuary Hall Collection
The National Statuary Hall Collection in the United States Capitol Building is...

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Visitor Hours for the Buildings on Capitol Hill
Visitor Hours for the Buildings on Capitol Hill.

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Small Business Program
Information for Small Businesses interested in doing business with the...

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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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Blog Posts Categorized 'Architecture'

May 20
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Touching Up Columns in Statuary Hall
Next time you’re in Statuary Hall on the second floor of the U.S. Capitol near the House Chamber, look closely
October 22
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U.S. Capitol Dome
Architect of the Capitol Stephen T. Ayers, FAIA, LEED AP, reflects on the AOC's effort to restore the U.S. Capitol Dome.
June 18
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Early House of Representatives Chamber (artist representation)
Too hot or too cold – there is no pleasing everyone when it comes to the right temperature in the office. But while today the AOC provides a climate-controlled environment to the buildings of Capitol...
March 04
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Capitol Crypt, circa 1900
The term “crypt” has long referred to a space beneath the main floor of a church or a chamber in a mausoleum. For many of us it suggests somber, stony silence and perhaps dusty coffins. The Capitol...
January 22
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The AOC is responsible for nearly 600,000 square feet of windows
Architect of the Capitol Stephen T. Ayers reflects on the almost 600,000 square feet of windows – of all different shapes, size and age – cared for by the AOC.
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