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Photograph of people walking outside on a Self-Guided Tour of Capitol Hill
Visitors can tour many highlights on Capitol Hill without registering.

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On February 24, 2010, President Barack Obama nominated Mr. Ayers to serve as...

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Chugach National Forest in Alaska
How do you pick a single tree from an area that stretches across all of south-...
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Exploring Orchid Diversity

By Devin Dotson

Found on every continent except Antarctica, orchids showcase a wide spectrum of diversity in color, shape, size, habitat, scent and many other aspects.

Orchid Show at the U.S. Botanic Garden.
Orchid Show at the U.S. Botanic Garden.
February 21, 2018
Found on every continent except Antarctica, orchids showcase a wide spectrum of diversity in color, shape, size, habitat, scent and many other aspects.More »
Visitor Guides Andrew Tremel, Carrie Gallagher and Brandon Hintze who made the Student Program so successful.
January 31, 2018
The Capitol Visitor Center runs educational programs for classes nearly 50 times between October and February, serving nearly 1,500 students.More »
Condition of the stone on the Russell Building pre-restoration.
January 11, 2018
Stone preservation will continue to be a priority of the AOC as the best way to maintain the buildings across the Capitol campus is to constantly monitor them.More »
'Premium Picasso' (left) and 'Jingle Bell' (right) pointsettias.
December 22, 2017
The gardeners have grown more than 3,000 poinsettia plants to brighten up the Conservatory's annual holiday exhibit "Season's Greenings: Roadside Attractions."More »
2017 Highlights
December 20, 2017
Before we dive into 2018, here's a look back at some of this year's highlights.More »
Group photo of members of the AOC Capitol Grounds team with the Safety Sign.
November 29, 2017
Two examples of what an empowered and innovative workforce looks like in day-to-day operations at the AOC.More »
The lunette "Telegraph" by Brumidi in the now Lyndon B. Johnson Room, S-211.
November 20, 2017
Various locations where the cornucopia, a traditional symbol of the upcoming Thanksgiving holiday, appears in the U.S. Capitol.More »
2017 War Gardens
November 15, 2017
To mark the centennial of the U.S. entering World War I, Library Buildings and Grounds staff recreated period-appropriate "War Gardens."More »
Searching for "The One"
November 9, 2017
Finding "the one" is pretty similar, whether you're searching for true love or the U.S. Capitol Christmas Tree.More »
Groundbreaking at the Hart Senate Office Building.
November 8, 2017
As the country grows, so does the Capitol campus and, with it, the AOC's responsibilities.More »
Robert Gannon smoothes out imperfections in a plaster cast.
November 1, 2017
Some Architect of the Capitol employees are highly visible, while others work behind the scenes to preserve the awe-inspiring facilities on Capitol Hill.More »
Capitol Dome out of focus, branch in foreground.
October 31, 2017
On Friday, October 13, AOC employees set out to look into a new Capitol Building mystery.More »
A view of the renovated Bartholdi Park.
October 25, 2017
An in-depth summary of the recent Bartholdi Park renovation.More »
Federal Office Building No. 8, now known as the O’Neill House Office Building, under original construction. Photo courtesy of the FDA.
October 18, 2017
A brief history of the O'Neill Building.More »
Capitol Visitor Center architecture that borrows from historic Capitol Building architecture.
October 11, 2017
The Architect of the Capitol believes that, when making additions to historic buildings, we are not to copy or try to match the historic building, but rather we are to differentiate the new features so we don't create a false sense of history.More »

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