A re-constructed cell in the East State Penitentiary. This is laid-out as it was when the prison was originally built, with each prisoner in solitary confinement. As prison population numbers went up, though, prisoners had to share cells.
A wind-surfer takes advantage of the stiff breeze which comes into the San Francisco Bay from the Pacific. In the background you can see the north end of the Golden Gate Bridge, at the Marin Headlands.