This is awfully cool - these guys make 3D sculpture which looks like M.C.Escher's amazing 2D illustrations. The sculpture is designed on a computer and then printed with a 3D printer. As Neo would say: Whoa.
And for extra credit, these guys made Belvedere out of Lego. Double whoa.
In an even more amazing act of Lego legerdemain, they also made "Ascending and Descending":