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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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Painted portrait of Dr. William Thornton
The Architect of the Capitol (AOC) is the builder and steward of America’s...

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Beth Burrous, biochemist and USBG volunteer.
Learn about plants used to make lifesaving medicines at the U.S. Botanic Garden...

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