Chicago River and towers of the West Loop area, Willis Tower, formerly Sears Tower in the background, a raised disused railway bridge in the foreground, Chicago, Illinois, United States of America, North America

Chicago River and towers of the West Loop area,Willis Tower, formerly the Sears Tower in the background, a raised disused railway bridge in the foreground, Chicago, Illinois, United States of America, North America

Chicago River and towers of the West Loop area, Willis Tower, formerly the Sears Tower in the background, a raised disused railway bridge in the foreground, Chicago, Illinois, United States of America, North America

Chicago River and towers of the West Loop area, Willis Tower, formerly Sears Tower in the background, a raised disused railway bridge in the foreground, Chicago, Illinois, United States of America, North America