GOOGLEEARTH
Google Earth
Google Earth is a virtual globe, map and geographical information program that was originally called EarthViewer 3D, and was created by Keyhole, Inc, a Central Intelligence Agency funded company acquired by Google in 2004 . It maps the Earth by the superimposition of images obtained from satellite imagery, aerial photography and GIS 3D globe. It was available under three different licenses, two currently: Google Earth, a free version with limited function; Google Earth Plus, which included additional features; and Google Earth Pro, which is intended for commercial use.The above text is a snippet from Wikipedia: Google Earth
and as such is available under the Creative Commons Attribution/Share-Alike License.