Google Earth
Google Earth is a computer program that renders a 3D representation of Earth based primarily on satellite imagery. The program maps the Earth by superimposing satellite images, aerial photography, and GIS dataonto a 3D globe, allowing users to see cities and landscapes from various angles. Users can explore the globe by entering addresses and coordinates, or by using a keyboard or mouse. The program is available via the Web and can also be downloaded on a desktop, laptop, smartphone or tablet.
In addition to Earth navigation, Google Earth provides a series of other tools through the desktop application. Other features allow users to view photos from various places, information provided by Wikipedia on some locations, and Street View imagery.