"CityEngine can take real-world data and transform it into 3D models. For example you can grab an area of the world tha you are interested in, import the 3D terain data from Esri and OpenStreetMap to quickly create a 3D city that you can further modify to fit your needs." 80 Level EsriCityEngine interview with Woody Hynes: http://bit.ly/2bw3oQG