![Premium Photo | Cannon house office building in washington d.c., usa. it is the oldest congressional office building which was completed in 1908. it was named after former joseph gurney cannon. Premium Photo | Cannon house office building in washington d.c., usa. it is the oldest congressional office building which was completed in 1908. it was named after former joseph gurney cannon.](https://img.freepik.com/premium-photo/cannon-house-office-building-washington-d-c-usa-it-is-oldest-congressional-office-building-which-was-completed-1908-it-was-named-after-former-joseph-gurney-cannon_250132-7679.jpg?w=2000)
Premium Photo | Cannon house office building in washington d.c., usa. it is the oldest congressional office building which was completed in 1908. it was named after former joseph gurney cannon.
![Architect of the Capitol - Cannon House Office Building Modernization | Best MEP firms Washington, DC Architect of the Capitol - Cannon House Office Building Modernization | Best MEP firms Washington, DC](https://jamesposey.com/wp-content/uploads/2020/06/Exterior_corner3.jpg)
Architect of the Capitol - Cannon House Office Building Modernization | Best MEP firms Washington, DC
![Cannon House office building EVACUATED as alarm rings out and officials told to 'remain calm' | The US Sun Cannon House office building EVACUATED as alarm rings out and officials told to 'remain calm' | The US Sun](https://www.the-sun.com/wp-content/uploads/sites/6/2022/02/EP_CANNON_HOUSE_BREAKER_OFFPLATFORM.jpg?strip=all&quality=100&w=1080&h=1000&crop=1)
Cannon House office building EVACUATED as alarm rings out and officials told to 'remain calm' | The US Sun
![Cannon House Office Building, First Street & Independence Avenue Southeast, Washington, District of Columbia, DC | Library of Congress Cannon House Office Building, First Street & Independence Avenue Southeast, Washington, District of Columbia, DC | Library of Congress](http://tile.loc.gov/storage-services/service/pnp/habshaer/dc/dc0400/dc0471/color/572025cr.jpg)