Japanese architect Shuhei Endo's work falls into two broad, self-described categories, Springtecture and Rooftecture. Projects in the former utilize corrugated metal that is bent into ribbon shapes, much like unrolled cardboard tubes (click for image). Suitable for parks and other environments where inside and outside can be loosely defined, Endo envisions his Springtecture for museums and even cities. His Rooftecture focuses, naturally, on a building's roof, often extending it to become wall (click for image). In each type, the projects are given categorical names like Springtecture H and Rooftecture A, making them seem more like personal experiments than designs for a specific client and place. Growtecture S....Chuou-ku, Osaka, Japan