American architecture firm studio gang architects have designed this aqua tower in Chigago, USA.
Aqua tower considers criteria such as views, solar shading and function to derive a vertical system of contours that gives the structure its sculptural form. Its vertical topography is defined by its outdoor terraces that gradually change in plan over the length of the tower.
More info via Designboom or on Studio Gang Architects
archiDE 
This brings me to an idea:…