Visitors can tour many highlights on Capitol Hill without registering.


At the AOC we are leading the effort to conserve energy across Capitol Hill.


Black and white photo of the Capitol Power Plant's interior.
The Capitol Power Plant has undergone significant changes as new buildings were...

News & Notices

2018 U.S. Capitol Labor Day Concert Travel Tips and Prohibited Items

August 30, 2018

View of the Labor Day Concert on the U.S. Capitol West Front Lawn during sunset.
The following press release is via the United States Capitol Police. Know Before You Go: Information on the Concert, Rehearsal, Prohibited Items and Street Closures On Sunday, September 2, 2018, the annual Labor Day Capitol Concert featuring the National Symphony Orchestra will be held on the West Front of the United States Capitol beginning at 8 p.m. The gates will open to the public at 3 p.m. There also will be a concert dress rehearsal on Sunday beginning at 3:30 p.m. The event is open and free to the public. For information about the concert program, please visit the Kennedy Center...

Read More

Senator John S. McCain to Lie in State in U.S. Capitol Rotunda

August 28, 2018

The U.S. Capitol Rotunda is used for important ceremonial events, such as the lying in state of eminent citizens and the dedication of works of art.
The following press release is via the United States Capitol Police. Information on Public Viewing Hours, Road Closures and Other Restrictions The late Senator John S. McCain will lie in state in the U.S. Capitol Rotunda on Friday, August 31, 2018. Members of the public and Congressional community are invited to pay their respects at the U.S. Capitol. Following a private arrival ceremony to include Senator McCain's family and Members of Congress, the U.S. Capitol Rotunda will open to the public from 1 p.m. until 8 p.m., on Friday, August 31. All visitors will enter through the U.S. Capitol...

Read More

Harvesting Hope: Continuing Our Tradition of Helping Others

August 21, 2018

Vegetables harvested from the 2017 victory gardens at the Library of Congress.
Building on the success of last year's War Garden project, the Architect of the Capitol's (AOC) gardening team who care for the Library of Congress buildings and grounds, identified and, in some cases, created additional beds to grow vegetables on the U.S. Capitol campus. To view the team's handy work, you can visit several gardens that surround the Library buildings. In the raised bed on the west side of the James Madison Memorial Building, the Library's gardening team planted a "three sisters" grouping. Corn, beans and squash were historically planted together by Native Americans because...

Read More

Spring 2018 Issue of Tholos Magazine Now Available

July 20, 2018

Tholos Magazine cover, Volume 8 Spring 2018.
The latest edition of the Architect of the Capitol (AOC) employee magazine, Tholos, is now available. Highlights include the articles below. Architect's Notebook: Finding Comfort in Balance Profile in History: Job W. Angus Feature: The Evolution of Women in Art at the U.S. Capitol Behind the Scenes: Restoration and Care of Historic Marble Floors By the Numbers: Capitol Visitor Center Cool Tools: Making Heads Safer, One Bump Cap at a Time Download the full Spring 2018 issue, or read the stories from this and previous issues on our blog.

Read More

2018 "A Capitol Fourth" Concert Travel Tips and Prohibited Items

June 27, 2018

Fireworks bursting in the air with the U.S. Capitol dome on July 4th.
The following press release is via the United States Capitol Police. Know Before You Go: Information on the Concert, Rehearsal, Prohibited Items & Street Closures On Wednesday, July 4, 2018, the 38th annual "A Capitol Fourth" Concert, celebrating America's Independence Day, will air live from the West Front of the United States Capitol. The concert begins at 8 p.m. on Wednesday, July 4, and gates will open to the public at 3 p.m. There will also be a full concert dress rehearsal on Tuesday, July 3, 2018, beginning at 8 p.m. Gates will open to the public at 3 p.m. Both events are open...

Read More

Renovated Bartholdi Park Achieves SITES Gold Certification

June 21, 2018

Members of the U.S. Botanic Garden and U.S. Green Building Council in Bartholdi Park with the SITES Gold Certification.
U.S. Botanic Garden's renovated Bartholdi Park showcases sustainable gardening, achieves SITES Gold certification The renovation of Bartholdi Park at the United States Botanic Garden (USBG) is complete, and the new garden is a showcase of sustainable gardening. Created in 1932, Bartholdi Park has served as a demonstration garden for more than 80 years and until 2016 had not undergone a complete renovation since its original construction. The renovation provided an opportunity to increase accessibility, showcase the Sustainable SITES Initiative (SITES) principles in action, and demonstrate...

Read More


Contact Us

General Inquiries


Erin Courtney

Cannon Renewal

Kristen Frederick

Grant Restoration

Justin Kieffer