It's quite the eye-opener. Though I was a little surprised to see they don't have Kilimanjaro ("White Mountain"), Tanzania whose meager remains of a glacier may well melt away before the decade is out...

If you haven't tried or used some of the free add-ons from NASA's World Wind you should. Also sorts of data.

+ Recently, they've added access to Virtual Earth
http://www.worldwindcentral.com/wiki/Add-on:Virtual_Earth

+ Access to France Scan and TeleAtlas maps

+ NASA Earth Observations add-on released

+ South Africa Add-on released

+ Global Poverty statistics

+ All sorts of science add-ons in this package
   World Wind Science Suite released

+ Global Population add-on released
All of these and many more listed here:
http://worldwindadd-ons.blogspot.com/

For a full list of add-ons see:
http://www.worldwindcentral.com/add-ons/list

World Wind also has data for the Moon, Saturn
http://www.worldwindcentral.com/wiki/Add-on:Saturn
Mercury, Mars
http://www.worldwindcentral.com/wiki/Add-on:Mercury

This is also an interesting add-on
http://www.worldwindcentral.com/wiki/Add-on:Spoken_Languages