Description:

Earth3D is a program that visualizes the earth in realtime in a
3D view. It uses data from NASA, USGS, the CIA and the city of
Osnabruck. I would like to thank these organisations to allow
me to use their data! The program is available as binary for
Linux, MacOS X and Windows under the GPL license. The program's
features are:

* viewing the earth as a whole
* zooming in until countries, cities and even single houses
become visible (in areas where the necessary map resolution is
available)
* embedding external data like current earthquake positions,
cloud data or GPS points

You can also get some maps mirrored locally to speed up access:
http://venus.schunter.etc.tu-bs.de/~gunia/earthdata.zip
(~1.1->1.9Gb; doesn't include Landsat7 100m/pixel data)

PS: packaged experiencing frustration of Google Earth ;)