Home Preservation Circle Chicago Federal Center, Ludwig Mies van der Rohe, Completed 1974. With Flamingo sculpture by Alexander Calder created 1974. Photo Credit: Eric Allix Rogers

Chicago Federal Center, Ludwig Mies van der Rohe, Completed 1974. With Flamingo sculpture by Alexander Calder created 1974. Photo Credit: Eric Allix Rogers

Chicago Tribune Tower, 1922, Howells & Hood, 435 N. Michigan Ave. Designated a Chicago Landmark in 1989. Photo Credit: Eric Allix Rogers

Chicago Federal Center, Ludwig Mies van der Rohe, Completed 1974. With Flamingo sculpture by Alexander Calder created 1974. Photo Credit: Eric Allix Rogers

The Fisher Building, 1896 with 1907 addition, Charles Atwood / D.H. Burnham & Company , 343 S. Dearborn Street. Designated a Chicago Landmark in 1978. Photo Credit: Eric Allix Rogers
Stature of Ceres, goddess of grain, by artist John Storr atop Chicago Board of Trade Building, 1930, Holabird & Root 141 W. Jackson Blvd. Photo Credit: Eric Allix Rogers