(16 sided, Hilton Hotel, IL-16-18) in Oak Lawn, Cook County, IL. IL50 (Cicero Av.) N. 0.1 miles from jct with US12/20, E. on 94th St. 250’ to the hotel on the N. side of the road. (N41 43.349 W87 44.390) Photo 11-14-04.