Geeky fun with Google Maps
Came across this website today:
http://www.mapofstrange.com
Allows users to submit strange things seen on google maps. Hit or miss, and a lot of crop circles and old planes, but some are really interesting.
Take, for example, these high resolution aerial photos in Africa that have been contributed to Google Maps from national Geographic:
http://maps.google.com/?ie=UTF8&ll=10.90385,19.935069&spn=0.000244,0.000429&t=h&z=22
There are a few other high res images - zoom out and scroll around. Look for others in the region from the map of strange website.