June 1962 Alcatraz escape

On the night of June 11, 1962, inmates Frank Morris and brothers John and Clarence Anglin escaped from Alcatraz Federal Penitentiary, the maximum-security prison on Alcatraz Island in San Francisco Bay, California, United States. Having spent six months preparing their breakout, the three men tucked papier-mâché model heads resembling their own likenesses into their beds, broke out of the main prison building via ventilation ducts and an unguarded utility corridor, and departed the island aboard an improvised inflatable raft to an uncertain fate.

Source: Wikipedia — June 1962 Alcatraz escape (CC BY-SA 4.0)