Lots of cool photos of the abandoned Public Health Service Hospital in San Francisco, CA:

www.loupiote.com/phsh

This abandoned hospital is located in the Presidio of San Francisco. Built in 1931, the 480-bed hospital has been abandoned since 1981. There is are plans to transform it into housing with construction starting in 2005, so everything you see here will be destroyed soon.

The Presidio Hospital is a really interesting place to explore, as it is very large (6 interconnected buildings, most of them 7-story), mostly intact and covered with *many* cool graffiti.