So I came across this neato thing today in a Nerd³ video....
http://oskarstalberg.com/game/planet/planet.html
Sadly, I can't run it 'cause i don't have WebGL enabled on my pc, but it loooks reeeeally neat. Try it!
Thats actually quite cool, Though it lagggs a bit and i can see some weird details :P
Wow that took a long while to load in Firefox but it was still cool to mess around with :D
Also a planet made entirely of cities sure looks weird >.<