Designed by Austrian architecture studio Propeller Z, this imposing architectural structure in Vienna displays a terraced profile that contours the skies. Acting as a family home, the “Plak ” residence has gardens and terraces that keep the inhabitants strongly connected to nature. Three characteristics of the site led to the structure’s shape and size – steep, long and narrow. In order to have the best views and space arrangement, the architecture had to become part of the terrain – this resulted in cantilevered and carved volumes. ...Architecture.