Have you checked out the new Street View that Google (GOOG) has come out with for their maps? It shows images of buildings and streets. You just click on the Street View button and move the little man to the street that you want to see. It's available for such cities as San Francisco, San Jose, and New York City.
If you are wondering how they get these images, they use such things as a Tele Atlas vehicle, which is a converted Toyota (TM) van with special cameras and global positioning equipment. The Tele Atlas is used for Tom Tom gps devices.