Google Mars?
Might he old, but I just discovered [tag]Google[/tag][tag]Mars[/tag].
You can “browse” the Mars surface, using [tag]infrared[/tag], visible and elevation data. So far only limited data is available but it is still fun.
Additionally certain “points of interest” (e.g. Regions, Mountains, Plains, Spacecrafts, Canyons, Ridges, Stories, Dunes and Craters) can be selected and highlighted.
I guess Google Mars is a project related to Google Moon. Who can find the green men? 
