Detroit's Air Defense: The Nike Missile System
During the Cold War, Detroit was guarded against bomber attack by a Nike Missile System, and there are still remnants of the radar system in the form of massive concrete pillars.
- A retrospective of the daily operation of the system - http://voices.yahoo.com/detroits-cold-war-missiles-3495869.html
- A map of locations in the city - http://nikehercules.tripod.com/sitemenu.html
- Photo of one of the radar towers - http://www.detroityes.com/webisodes/2000/04mysteries/01concrete_tower.htm