During the Cold War, anything could happen. The US military's response to this reality was to ring every major metropolitan area with defensive missile bases that could launch Nike antiaircraft supersonic missiles at any time. The goal was to make attacking the United States so costly that the Soviets would not dare try. One of the roughly 20 bases defending the Chicago area was Nike Missile Base C-47, a 14-acre site built between 1954 and 1956. Surrounded by 8-foot-tall cyclone fences, the base housed three underground concrete bunkers, three launchers, five radar towers, a fallout shelter, and day barracks.
Today, the Cold War is safely tucked in the nation's memory, but much of C-47 still remains. However, instead of military personnel coming and going throughout their 24-hour shifts, it's paintball and Airsoft players who creep along the 10 sprawling fields, simulating the warfare that luckily never occurred on the base. The terrain includes many of the original features—such as a mess hall, army barracks, and satellite towers, which host strategic meetings and midbattle naps. Referees enforce special safety rules for minors to keep games safe and organized.