CHICAGO (plane) - Glass negative photogrpah. Public domain.

Chicago or: Chi-Town or Chitown, Chicagoland, The White City, City by the Lake, City of the Big Shoulders, City of Broad Shoulders, City of the Century, The 312, City on the Make, The City That Works, The Big Onion, City in a Garden, Hog-Butcher to the World, Beirut by the Lake, New York Done Right, Illville, I Will City, Paris on the Prairie, Sweet Home, Heart of America, The 773, The Alley Capital of America