The Czech Republic’s first 3D printed house is also a floating one. Prvok, as it’s been named, was designed by Michal Trpak, with collaboration from the architects at Scoolpt. This house’s 3D printed walls are topped by green sustainable roofing allowing water recovery systems to be incorporated. Prvok is composed of three rooms: a bedroom, bathroom, and kitchen. The printing process only took 48 hours and is said to be at least three times stronger than traditional concrete walls.