Nagakin Capsule Hotel

The Nakagin Capsule Tower is a mixed-use residential and office tower designed by architect Kisho Kurokawa and located in Shimbashi, Tokyo, Japan. Completed in 1972, the building is a rare built example of Japanese Metabolism, a movement that became emblematic of Japan's postwar cultural resurgence.The building was the world's first example of capsule architecture built for actual use. The building is actually composed of two interconnected concrete towers, respectively eleven and thirteen floors, which house 140 prefabricated modules (or "capsules") which are each self-contained units. Each capsule measures 2.3 m × 3.8 m × 2.1 m and functions as a small living or office space. Capsules can be connected and combined to create larger spaces. Each capsule is connected to one of the two main shafts only by four high-tension bolts and is designed to be replaceable. No units have been replaced since the original construction.