Money would become a barrier for you who want to explore all corners of the earth. However, with the WorldWind 1.4 is free, you can feel like really travel around the world, especially 3D graphics look very interesting and quite detailed. Software made using this technology, NASA Landsat Satellite and Shuttle Radar Topography Mission Data for the surface of the earth image.

Thanks to the technology, the details of each surface of the earth as you can see the original. Even for the United States, you can zoom up to a tree limb in the streets, buildings, and cars that are moving.

Information about sea temperature until tectonic slit plate can be displayed. The program has tools to do the search for a city or location you wish to search.

More info about this  : Nasa World Wind