Ladies and gentlemen, this is the new Chalmers University (Sweden) building: the Kuggen (the name comes from its external gearwheel form - Kuggen in Swedish).
Designed by Wingårdh Architects Studio, the innovative parts of this building are the materials and the energy saving techniques, which transform it in an innovative sustainable (and funny) building.
The skin is made of six different shades of red and a one green which is executed in glazed terracotta. It is interesting that the building grow in size for every added floor, and the center of each circle is a bit shifted so the southern elevation gets the longest shadow.

But what about the green part? Let's just say adaptive ventilation, adaptive lighting, interactive heating and cooling systems, and effective daylighting. Even the ceramic panels on the facade were chosen for their longevity. The triangular windows allow daylight to follow the ceiling deep into the building while staying at a low ratio of the elevation surface. The result? A building aiming at an energy consumption well below what is considered a green building, while providing state of the art comfort (temperatures around 24 degrees).