Your own personal satellite view...

[Soeru]

http://keyhole.com/

I can not possibly describe how amazed I am with this piece of shareware... At first I thought it was another 3D Earth/universe model like Celestia, but it's far from that. It's a highly detailed model of the Earth, in which you can zoom into any city and see objects as small as cars, streets, and buildings. You also get a lot of nifty 3D terrain(mountains and such). It's a free seven day trial, so go check it out.

Btw, this requires something a little faster than dial-up to work correctly, since it downloads high resolution bitmaps from a server as you zoom in.

Edit: I attached a screenshot of where I am, just to portray Keyhole's l33tness...