Related Buildings
Ayers's Legacy
Each Architect of the Capitol helped shape the iconic buildings and grounds we know today.
Capitol Dome
The U.S. Capitol’s dome made of cast iron was designed by Thomas U. Walter and constructed from 1856-1866 at the total cost of $1,047,291.
Cannon House Office Building
After the Cannon Building opened in 1908 all members of the House of Representatives had an office for the first time in the nation's history.
Architects of the capitol