I am told that this is a hospital in San Diago, CA

Actually it is a Navy training center in Coronado, California. "CNN has just reported that the Navy has taken so much flack on this that they're going to change the building's offensive shape by adding landscaping and other structures to the tune of over $600,000! Must be the first time that online maps have forced a complete building redesign!" see http://www.flickr.com/photos/silvery/143053448/ for more on this. You can also Google swastika building, and lots of links to the story will come up.