“Planet Earth: 21st Century” stems from visual material sourced from Apple Maps Flyover and from Google Earth Virtual Reality. In 2011, Apple bought this 3D cartographic software for use on mobile devices that was originally developed for Saab-Military Industries. moreStarting in 2016, Google Earth VR also translated photographic material into 3D graphic models with a rendering software and GPS. Both Apps allow you to fly over cities and buildings in 3D.