An excellent example of Wright's Prairie School of architecture is the Robie House (5757 S. Woodlawn Avenue), near the University of Chicago.
Statement of Significance (as of designation - November 27, 1963):
The Robie House, constructed 1907-1909, was one of the seminal buildings in 20th century American architecture and won international acclaim for Frank Lloyd Wright. The house epitomizes Wright's Prairie Style. Its broad horizontal masses and planes, almost more sculpture than architecture, and its clean, unadorned lines are recognizable by all familirar with modern architecture.
5757 S Woodlawn Ave, Chicago, IL 60637