The dome of the Illinois State Capitol. Designed by architects Cochrane and Garnsey, the dome's interior features a plaster frieze painted to resemble bronze and illustrating scenes from Illinois history. Stained glass windows, including a stained glass replica of the State Seal, appear in the oculus. Ground was first broken for the new capitol on March 11, 1869, and it was completed twenty years later.
Photo credit: User:Dschwen