Cartography and satellite images never stop to impress me. Ingenious usage of it to be more precise. I freaked out first time I saw Goggles, and today I found this - Gamequakes Driving Simulator. It's a really nice and fast implementation of Google Maps API for Flash. But I think Goggles got it better with an airplane.
btw, click here and put this in background while you are playing to understand the full potential of this post title. :) Not!