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

Featured

The Cannon House Office Building, completed in 1908, is the oldest congressional office building as well as a significant example of the Beaux Arts style of architecture.
The Cannon House Office Building, completed in 1908, is the oldest...

Featured

A virtual Map of Capitol Hill from above
View a map of the U.S. Capitol and other buildings and grounds cared for by the...

Featured

Yellow flowers in front of the Capitol Building
The Architect of the Capitol annually publishes a wide variety of publications...

Featured

Photo of US Capitol Building made of plant materials.
The U.S. Botanic Garden’s annual holiday exhibit is on display November 27...

What's New