Serving Congress and the Supreme Court, preserving America's Capitol, and inspiring memorable experiences

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U.S. Capitol Dome
The U.S. Capitol’s dome made of cast iron was designed by Thomas U. Walter and...

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Getting Here
Located at the center of Washington, D.C., the U.S. Capitol Building and other...

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AOC gardener at the U.S. Botanic Garden
Information about working for the Architect of the Capitol:

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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...