The company behind the creation of these futuristic cityscapes is a 3D printing and design outfit called WhiteClouds. The company offers services that include refining your 2D concepts and printing them as 3D objects. To showcase their abilities and those of their 3D printers, WhiteClouds printed out a lineup of some of the most iconic city concepts ever dreamed up. Using both the ProJet 660 by 3D Systems, which prints in full-color sandstone, and the multi-material printing Stratasys Connex 500, WhiteClouds created some very detailed models that inspire a real sense of intrigue about the cities they depict. Here's a look at each of them and a bit of info about where the concepts came from.