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

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The U.S. Capitol Rotunda is a large, domed, circular room located 96 feet in diameter and 180 feet in height located in the center of the United States Capitol on the second floor.
The U.S. Capitol Rotunda is a large, domed, circular room 96 feet in diameter...

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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 a Capitol Power Plant chiller that's reaching the end of its life expectancy.
Fiscal Year 2016 Appropriations With the support of Congress, the Architect of...

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Photographic portrait of Ari Novy, Ph.D., as Executive Director of the United States Botanic Garden
The Architect of the Capitol announces the selection of Dr. Ari Novy as...

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