Architect of the Capitol

Our Work

A Tradition of Ingenuity

Our work inspires a nation. We are the artisans, historians, and craftspeople who preserve and maintain the landmark buildings, monuments, art and grounds of the Capitol campus.

Buildings & Grounds

The Capitol campus is made up of more than 18.4 million square feet of facilities, and 570 acres of grounds.

Discover the Campus

Projects

We ensure every visitor to Capitol Hill experiences the grandeur of these historic treasures at their very best.

Our Work

Art & Artists

We are responsible for the care of thousands of works of historical art.

View the Collection

Stories

New & Noteworthy

Delve deeper into the stories behind the people, art, history and grounds that make up the Capitol.

Public Notice

FY 2024 Performance and Accountability Report Available Online

The PAR offers an assessment of the priorities, accomplishments and financial accountability for fiscal year 2024. Capitol Highlights, infographics, charts, tables and photographs provide additional insight into the AOC's mission and performance.

Fireworks bursting in the air with the U.S. Capitol dome on July 4th.

Public Notice

2025 "A Capitol Fourth" Concert Prohibited Items and Street Closures | USCP.gov

The annual concert celebrating Independence Day will be broadcast live from the West Front of the U.S. Capitol. Here's what to know before you go.

Public Notice

Tree Dedicated in Memory of Senator Feinstein

Located in Capitol Square, N.W., near the Summerhouse.

Public Notice

U.S. Botanic Garden Shifts Open Hours for Summer 2025 | USBG.gov

From June 9 through August 31, the U.S. Botanic Garden (USBG) will shift open hours for the Conservatory to 11 a.m. – 6 p.m. The shifted hours will allow us to replace the greenhouse glass roof in the Conservatory Garden Court.