When Kisho Kurokawa designed his now iconic Nakagin Capsule Tower in 1972, the structure was meant to represent the core principles of Metabolism, experimenting with ideas of growth and change borrowed from biological processes. The emerging style in postwar Japan aimed to create buildings and megastructures that emulate living organisms that can evolve, expand, contract, and adapt to their changing conditions. Following this concept, the Nakagin tower was composed of 140 identical cell-like capsule units, each individually bolted to the two central shafts. The capsules were intended to be replaced and upgraded every 25 years, allowing for flexibility and mutation. The innovation proved to be impractical, however. Almost 50 years after its construction, the tower was demolished, but not in its entirety. A total of 23 capsules were saved and removed from the building to be given a new life. Now, the capsules are scattered around the world, continuing to represent Metabolist ideals in unexpected ways.