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


The Architect of the Capitol’s challenge is unique – maintaining aging, iconic buildings; adapting state-of-the-art technology; and increasing responsiveness to environmental, security and safety considerations in a rich historical setting.
The Architect of the Capitol's challenge is unique – maintaining aging, iconic...


Federal Office Building No. 8, now known as the O’Neill House Office Building, under original construction. Photo courtesy of the FDA.
A brief history of the O'Neill Building.

What's New

Thurgood Marshall Garage Renovation

The Thurgood Marshall Federal Judiciary Building (TMFJB) is undergoing a renovation of the facility's parking garage. The project includes repair of water infiltration problems, replacement of interior finishes, crack repairs, a new traffic surface topping, and upgrades to the lighting and sprinkler systems.

The majority of work will be performed at night. During each phase of the work, some portions of the garage will have limited use, or be restricted entirely. Signage, traffic controls and flaggers will be provided to assist with navigation through the garage. For all garage users' safety, it is important to obey the 5 mph speed limit and have lights on at all times while in the garage, whether entering or exiting.

The project is scheduled to end in the spring of 2019.

U.S. Supreme Court
Supreme Court
Stone Preservation
Is a Video: