Have not tried this but my son says he like it! 
and the high temp here in Oregon today was 70 degrees!

Explore the world from home

http://www.chimoosoft.com/terrabrowser.html

Terrabrowser from Chimoosoft

Terrabrowser lets you explore the United States through
satellite imagery. It also makes use of topographic maps.
You can move around and zoom onto any location. You can
also search by ZIP code or specific address.

Terrabrowser can work with Garmin and Magellan GPS devices.
You can download routes and waypoints to show in
Terrabrowser. You can also save any views as pictures and
e-mail them.

Terrabrowser gets its information from Microsoft's
TerraServer project.

Requirements: OS X 10.3, 10.4
Cost: Free, $15 donations asked