Known for his strange and deconstructed forms, Frank Gehry designed this monumental, but chaotic and abstract-looking sculpture in 1967. Covered in titanium, the curves on the building have been designed to appear random in order to catch the light.

Designed by Claude Hausermann-Costy, and built by Joel Unal between 1972 and 2008, it's a bubble house without a single right angle. The technique used was the application by hand of a layer concrete, without forms, on top of a metal frame. The house is part of a movement known as "sculpted architecture".