Google Earth is a virtual globe. Once downloaded user can access geographical map information through a built-in search. The program maps the Earth by superimposing satellite imagery, and aerial photography of geographical information. The Google Earth free version provides multiple functions such as capturing 3D building image sketch ups, and surfaces are available. Users can create and save KMZ files for pinning locations on a map. When using Google Earth in Digital Learning Design the KML files (keyhole markup language) can be specified to specific spots on the globe. It’s similar to bookmarking a location and it allows teachers to produce links for points of interest.