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

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This painting by Allyn Cox depicts the cornerstone laying ceremony and is currently on display in the House Wing of the U.S. Capitol Building.
The cornerstone was laid on Wednesday, September 18, 1793, during the first...

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

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

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Capitol Grounds
Take an outdoor walking tour of the U.S Capitol Monday through Saturday at 1 p....

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Posted on September 16
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Cara holding her chocolate tree.
With Sprouts at the U.S. Botanic Garden, children learn about the magical world of plants.
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November 09 By: Matt Guilfoyle 1 Comments
Statue of Abraham Lincoln in Rotunda of U.S. Capitol
The recent attention for the movie “Lincoln” produced by Steven Spielberg and starring Daniel Day-Lewis as President Abraham Lincoln draws focus on this remarkable individual, the period in which he...
October 25 By: Laura Condeluci 0 Comments
The aromatic aster (Symphyotrichum oblongifolium)
It’s fall in the Mid-Atlantic and brisk, sunny days provide opportunities for wonderful walks outdoors. Fall brings fabulous color to the U.S. Botanic Garden, so while you’re out enjoying the season...
October 24 By: Michael Dunn 0 Comments
The Capitol Dome in Fall 2012
Michael Dunn, AOC’s chief of photography, draws upon his 15 years of experience to share tips for photographing the Capitol Grounds in fall.
October 18 By: Lori Taylor 1 Comments
AOC Masons
It wasn’t quite 4 a.m. when I arrived at the Capitol Building on Friday, October 12, and it was a chilly 48 degrees. While I was still adjusting to the darkness and cold the AOC stone masons were...

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