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

Featured

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...

Featured

The AOC Capitol Building Mason Shop successfully relocated the Magna Carta display to the Crypt.
It took both brawn and brains to move a beautiful (and hefty) treasure when the...

Contact Information

Architect of the Capitol
SB-16 U.S. Capitol
202.228.1793 (main number)

Capitol Switchboard (Operator)
202.224.3121

U.S. House of Representatives
Find your member

U.S. Senate
Find your member

Capitol Visitor Center
202.226.8000

AOC Procurement
202.226.2557

AOC Employment
202.226.7000


AOC Service Centers

For assistance with plumbing, electrical, lighting, locks, cleaning and more for employees on Capitol Hill:

Capitol Building
202.228.8800

House Office Buildings
202.225.4141

Senate Office Buildings
202.224.3141