With the mission of making ‘data in cities useable and useful to city governments, businesses and citizens’, 5D Smart City by Cityzenith, maps multiple complex data sources into an interactive 3D interface. The aim is that it is so intuitive that everyone from the Mayor to most citizens can find it useful. It has been five years in creation, from an idea by Remi Arnaud, former lead developer of Google Earth. It is now rolling out worldwide with major cities adopting it.