3. The Chicago suburbs once held 425,000 German prisoners in POW camps
Crazy but true: during WWII, more than 425,000 German prisoners of war were held right in our backyard. While POWs were held at camps in Arlington Heights, Des Plaines, Highwood, and Glenview, Fort Sheridan acted as a main hub. Some prisoners were German-Americans, but roughly 370,000 prisoners of war were actually flown in from overseas.