Alcatraz Island (former prison and iconic skyline subject)

Alcatraz Island, the site of the former federal penitentiary that operated from 1934 to 1963, is managed by the National Park Service as part of the Golden Gate National Recreation Area and is open to the public via timed ferry tours. The island and its cellhouse are among San Francisco’s most recognizable images and regularly appear in widely shared photographs, videos, and travel features. Alcatraz’s history as a prison and its position in the Bay contribute to its frequent appearance in online content about the city.