I was reading a great article in Popular Science about the latest in skyscrapers (http://www.popsci.com/technology/article/2013-02/rise-supertalls). In the article it discussed how 3D printing has revolutionized their design. With 3D printing a new model can be made within hours for wind tunnel testing, sometimes 18 in a day! The models can be covered with sensors and even the surrounding neighborhood can be printed to predict complex wind patterns! This allows buildings to take more artistic shape and saves costs by not having over design. We may not be 3D printing buildings yet, at least in full scale, but the next time you look at a skyline know 3D printing may have been a part!