The link above gets us to a NASA website that allows us to download software which when installed gives us a 3D view of the entire planet.
This is the best viewer I have ever seen. You can change the base images between true color, black and white, false color, quad maps, and the images for urban areas are awesome.
Many of you have seen the urban area maps on Goggle Maps, TerraServer or other locations. But, when I saw them in 3D I was blown away!!!
We have the choice of many image formats to save the views to.