Illinois State Capitol

The Illinois State Capitol, located in Springfield, Illinois, houses the legislative and executive branches of the government of the U.S. state of Illinois. The current building is the sixth to serve as the capitol building since Illinois was admitted to the United States in 1818. Built in the architectural styles of the French Renaissance and Italianate, it was designed by Cochrane and Garnsey, an architecture and design firm based in Chicago.

Source: Wikipedia