You can not escape from “The Rock”, as it is commonly known. Alcatraz was a high security federal prison from 1934 to 1963. The main prison building was constructed from 1910 to 1912. It housed 1,576 total prisoners who continually caused trouble at other federal prisons. 36 prisoners made 14 attempts to escape The Rock; none are known to have survived.
The island also contains the oldest operating lighthouse on the American west coast.
Alcatraz is now a museum and a major San Francisco tourist attraction. 1.5 million visitors annually tour the grounds.
The white structure covers the iconic water tower since it is undergoing renovation for visitor safety.
A video by davidegg22 , music “Oppressive Gloom” by Kevin MacLeod