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Painted portrait of tenth Architect of the Capitol, Alan M. Hantman.
Alan M. Hantman, FAIA, served as the 10th Architect of the Capitol.
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United States Capitol, Washington, D.C. Section of south wing, 1800s drawing by Benjamin Henry Latrobe. Retrieved from the Library of Congress.
Thomas Jefferson, inspired by skylights he saw in Paris, prevailed upon the...

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Read a blog about the art, architecture and work on the Capitol Hill written by AOC's experts.

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Continuous Care of the U.S. Capitol Roof

By Laura Condeluci

Like most beloved national treasures, the U.S. Capitol Building roof requires continuous care. Once a section has been replaced, it is regularly inspected as part of preventive maintenance.

Conditions of the U.S. Capitol's copper roof before replacement.
Blue heron carved in stone at the focal point, the central fountain, in the perimeter wall surrounding Capitol Square.
March 15, 2017
Architect of the Capitol Stephen Ayers describes his love of birds and their role in the focal point of Capitol Square's perimeter wall.More »
United States Supreme Court Building
March 8, 2017
What were the driving factors of our Deputy Facility Manager's career as an engineer? It started from a love of riding roller coasters.More »
Women are integral members of the Dome Restoration Project
March 8, 2017
The first female Chief Operating Officer for AOC reflects on the experiences that introduced her to extraordinary women and helped shape her management style.More »
2016 carved into a column capital during the Capitol Exterior Preservation project's stone work.
December 29, 2016
This past year has been filled with many sweet moments around the Capitol campus. Here are 10 that stand out.More »
Epicatanthe Volcano Trick Orange Fire Orchid
December 21, 2016
Things don't slow down just because it's winter. See five reasons to explore the U.S. Botanic Garden this season, including tropical flowers like this Epicatanthe Volcano Trick Orange Fire orchid.More »
December 15, 2016
Time has taken its toll on the U.S. Capitol's stone, but our preservation effort will restore even the finer details, hand-carved by artisans.More »
The work of the Capitol Building's Insulation Division is as "behind the scenes" as you can get.
December 8, 2016
The Capitol Building's Insulation Division is as "behind the scenes" as you can get, often working behind closed doors and within containments to ensure the safety of those who visit and work on the Capitol campus.More »
A portico of tall Corinthian columns gives the Supreme Court Building a monumental entrance.
December 5, 2016
Architect of the Capitol Stephen Ayers describes how we can experience Capitol Hill's magnificent national treasures the way they were originally imagined.More »
Russell Jones of the AOC Construction Division demonstrates a cool tool for applying grout to the Olmsted wall.
December 1, 2016
A special tool helps our stone masons repair and replace the mortar in the low stone walls lining Capitol Square.More »
November 17, 2016
Each one of us has the ability to learn a new skill that we are passionate about and then use that gift in ways that can help others.More »
The Superintendent of Capitol Grounds for Architect of the Capitol searches Payette National Forest to select the 2016 Capitol Christmas Tree.
November 2, 2016
It can be hard to find a tree in the forest that meets all of the Capitol Christmas Tree criteria, but the Superintendent of Capitol Grounds has done it again.More »
October 21, 2016
Given that the United States Capitol was once expected to be the final resting place for George Washington, replete with a crypt, should we be surprised that multiple Capitol-related ghost stories exist? Discover the myths, mysteries and folklore of this historic American building.More »
October 7, 2016
See how Columbus' 15th century journey was depicted by 19th century artists in art throughout the Capitol.More »
September 28, 2016
We have made some interesting discoveries about the details of the sculptures and the sources of some of the depicted figures; we discovered and solved a few puzzles, and we also came across a few mysteries that we're still working on (and we'd welcome your help!).More »
Black and white photo of Genius of America pediment.
September 1, 2016
A variety of letters and numbers appear on buildings or in art work on Capitol Hill.More »

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