San Francisco, California, United States - August 14, 2016: tourists visiting Alcatraz prison in main corridor upper cells on both sides on three leve

- Image ID: HP94R2
Benny Marty / Alamy Stock Photo
Image ID: HP94R2
San Francisco, California, United States - August 14, 2016: tourists visiting Alcatraz prison in main corridor upper cells on both sides on three levels. San Francisco is historical site landmark.