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

Featured

U.S. Capitol Dome was constructed with 8,909,200 pounds of ironwork bolted together in a masterpiece of American will and ingenuity.
The U.S. Capitol’s dome made of cast iron was designed by Thomas U. Walter and...

Featured

A crowd of people visiting the Capitol during visitor hours
Visitor Hours for the Buildings on Capitol Hill.

Featured

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...

Featured

AOC employees plan renovations to Representative Tammy Duckworth's Office
A team of tradecrafts experts at the AOC transform an office into a completely...
Restoring the Dome
The U.S. Capitol Dome is undergoing a multi-year restoration.
AOC masons give much needed repair to the Olmsted Terrace walls around the Capitol Building.
A holistic approach, recognizing the delicate balance between preservation and modernization.
Caring for the iconic landmarks, buildings and grounds of Capitol Hill.
Restoring the Dome
AOC Stonemason Repairs Olmsted Terrace
"Fountain of Light and Water" – commonly called the Bartholdi Fountain.
Decorative Painters in the Old Senate Chamber
Restoring the Dome
The U.S. Capitol Dome is undergoing a multi-year restoration.
AOC Stonemason Repairs Olmsted Terrace
AOC masons give much needed repair to the Olmsted Terrace walls around the Capitol Building.
"Fountain of Light and Water" – commonly called the Bartholdi Fountain.
A holistic approach, recognizing the delicate balance between preservation and modernization.
Decorative Painters in the Old Senate Chamber
Caring for the iconic landmarks, buildings and grounds of Capitol Hill.
Printer-friendly version