http://opensource.arc.nasa.gov/software.jsp?id=13
By all accounts with this free piece of software, you can view extremely high resolution photos (satellite and topographical) of almost anywhere in the world. I'm still downloading it, (250MB file) but someone on Neowin has managed to find some amazing shots of his home town that shows little things like swimming pools, cars etc
CPU intensive programme so if you haven't got a good spec I would avoid running it
