Designed by architect Piet Blom, these unusual looking residential Cube Houses located on Overblaak Street in Rotterdam in The Netherlands are based on the concept of “living as an urban roof”. The houses are tilted 45 degrees in a hexagon-shaped pylon. There are 38 small cubes with two super-cubes all connected together. One owner decided to open a “show cube” due to the curiosity of passers-by making this something of a tourist attraction. A Dutch hostel chain Stayokay converted the larger cubes into a hostel.