EarthView supports four different beautiful maps of the earth, starting at 10 km resolution, which means that at 100% zoom level, 1 pixel on your screen equals 10 kilometers on earth. If you purchase the full version, you'll get the possibility to download even more detailed versions of some maps, which have higher resolution. This means, they have much more detail, so you can zoom in even further!

Key Features
High detail view of the earth
Day and night view
Atmospheric effects
Urban areas and city lights
Clouds (internet download possible - now even higher resolution cloud data is available!)
Map and globe projection
Several beautiful maps to choose from
Location and local time of more than 70.000 cities worldwide
Wallpaper and screen saver support
Multiple monitor support
Many options for full customization
English and German version available
Now with full Windows 7 and 64 bit support!

Home Page: http://www.desksoft.com/EarthView.htm