DWGFREE - DWGFREE is an online platform that comes with a comprehensive collection of CAD blocks that can be downloaded without the need for registration.
Google Earth Pro - Google Earth Pro allows you fly anywhere around the earth to view satellite imagery, maps, 3D building, and terrain, from galaxies in outer space to the canyons of the ocean.
CADMAPPER - Instant CAD files for any location on earth
Google Earth Studio - Let the world tell your story
MAPACAD - MAPACAD is an online website that is providing leverage to designers and architectures to have the ability to download CAD map cities that can be directly used in their projects.
NASA World Wind - World Wind permits any client to zoom from satellite height into wherever on Earth, utilizing great determination Landsat symbolism and SRTM rises information to experience Earth in outwardly beautiful 3D, pretty much as though they were truly there.