3D Mapping of Chinese Cities

I saw an article on the Popular Science website about Edushi (E-City) based in Hangzhou China making 3D pixel art maps of Chinese cities. They have an ultra high resolution map of Hong Kong that you can zoom in and search like Google maps. This is just one of the maps of over 40 Chinese cities. The maps can be viewed in standard 2D map, aerial photo view or 3D pixel art view. The map of Guangzhou is animated with little cars and buses driving on the streets and fireworks over the stadium. Quite amazing.