Stock Photo: Skyline, skyscrapers, Willis Tower, formerly Sears Tower, 311 South Wacker, John Hancock Center, Aon Center, 77 West Wacker Drive, Two Prudential Plaza, Smurfit_Stone Building, Trump International Tower, dusk, Lake Michigan, Chicago, Illinois, United Stat. Skyline, skyscrapers, Willis Tower, formerly Sears Tower, 311 South Wacker, John Hancock Center, Aon Center, 77 West Wacker Drive, Two Prudential Plaza, Smurfit_Stone Building, Trump International Tower, dusk, Lake Michigan, Chicago, Illinois,

Stock Photo: 1848-711845 Skyline, skyscrapers, Willis Tower, formerly Sears Tower, 311 South Wacker, John Hancock Center, Aon Center, 77 West Wacker Drive, Two Prudential Plaza, Smurfit_Stone Building, Trump International Tower, dusk, Lake Michigan, Chicago, Illinois, United Stat. Skyline, skyscrapers, Willis Tower, formerly Sears Tower, 311 South Wacker, John Hancock Center, Aon Center, 77 West Wacker Drive, Two Prudential Plaza, Smurfit_Stone Building, Trump International Tower, dusk, Lake Michigan, Chicago, Illinois,