Oak Park is the hometown of Frank Lloyd Wright, America's greatest and most famous architect. The city is closely identified with his work, and contains a large concentration of houses designed by him. The Wright Home & Studio and his Unity Temple are both open to the public year-round, and other Wright buildings include the Moore-Dugal Home and Gage House.
The city's shape is an even rectangle, bordering Chicago on its east and north sides. It is served by two rapid transit lines, a commuter railroad, and Interstate 290. The downtown is along Lake Street on the west side, just south of the Frank Lloyd Wright Historic District.