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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Screenshot of Google Maps image of United States Capitol and surrounding areas.
Located at the center of Washington, D.C., the U.S. Capitol Building and other...

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Photo of Stephen T. Ayers, FAIA, LEED AP, Architect of the Capitol in front of the Capitol Building
On February 24, 2010, President Barack Obama nominated Mr. Ayers to serve as...

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Detailed view of Piper nigrum plant
Learn how pepper, allspice, cinnamon, cloves and nutmeg became a part of our...

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Blog Posts By 'Matt Guilfoyle'

September 29
By: Matt Guilfoyle
0 Comments
Juan Sandoval and Jose Hernandez using a lewis to remove stones from Olmsted Terrace.
Addressing the stone pandemic across the Capitol campus takes a team of historic preservationists, structural engineers and stonemasons, among others.
May 12
By: Matt Guilfoyle
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AOC working cleaning the National Garden
Conceived as an outdoor laboratory for gardening in harmony with natural ecosystems, the National Garden opened to the public on October 1, 2006.
November 06
By: Matt Guilfoyle
1 Comments
Black and white portrait of Benjamin Brown French
Long before the advent of Twitter, Facebook and blogs – there were journals. 150 years ago this month saw one of the most transformative periods in the construction of the United States Capitol along...
September 10
By: Matt Guilfoyle
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Flight 93 Memorial Plaque in the U.S. Capitol
For those of us in Washington, D.C., on September 11, 2001, the site of the beautiful Capitol Dome set against bright blue skies on a cool September morning will forever conjure feelings and memories...
June 18
By: Matt Guilfoyle
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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...
April 15
By: Matt Guilfoyle
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Abraham Lincoln's second inaugural at the U.S. Capitol
AOC Public Affairs Officer Matt Guilfoyle watches "Lincoln" and "Abraham Lincoln: Vampire Hunter"-- and is surprised by which film more accurately depicts the U.S. Capitol.
March 18
By: Matt Guilfoyle
0 Comments
The quarry at Government Island provided sandstone for the construction of the White House and the U.S. Capitol building.
AOC Public Affairs Officer Matt Guilfoyle walks in the footsteps of the masons and laborers who worked the quarry at Government Island in Aquia, Virginia, to gather stone for the U.S. Capitol more...
February 20
By: Matt Guilfoyle
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Construction of Capitol extensions
Montgomery Meigs – a man who built the Capitol while helping save the Union it represents - may be America’s greatest engineer.
December 21
By: Matt Guilfoyle
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U.S. Capitol Dome and Shuttle Discovery flying by
Capitol Hill 2012 in pictures - from the memorable, to the beautiful, to the solemn.
December 12
By: Matt Guilfoyle
0 Comments
Scene "Cortez and Montezuma at Mexican Temple" from the Frieze of American History in the Capitol Rotunda
AOC's Matt Guilfoyle investigates the myth of the Mayan Calendar at the U.S. Capitol.

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