In the heart of Tokyo's prestigious Ginza neighborhood, the Nakagin Capsule Tower once stood as a unique architectural experiment. Completed in 1972, the 13-story building featured 140 prefabricated steel capsules, each about 10 square meters in size, attached to two central concrete cores. Designed by architect Kisho Kurokawa, the structure was part of the "metabolic movement," a Japanese architectural philosophy from the 1960s that envisioned buildings as living organisms capable of evolving over time. Each capsule was meant to be detached and replaced every 25 years, allowing the building to adapt as needs changed. However, this ambitious concept never came to fruition due to financial constraints, and the capsules remained in place for over 50 years, gradually deteriorating. The original design of the capsules offered a compact living space, complete with a bed, a fold-out desk, and optional electronic equipment. Initially marketed to business travelers, the capsules were intended to be a flexible, disposable form of housing. However, without the funding needed to replace them, the system failed, and the capsules aged in place. Over time, the building's structural integrity also weakened, leading to its eventual demolition in 2022. Before the demolition began, asbestos was removed, and the interior was cleared. The removal of the capsules was the only way to finally detach them from the structure, as the original plan had never been realized. Despite the building's demise, efforts were made to preserve parts of it. A group of former residents, led by Tatsuyuki Maeda, worked to recover and restore 23 of the capsules before the demolition was complete. Of these, 14 were carefully reassembled to reflect their original design, while the rest were too damaged to be fully restored. Two of the preserved capsules were acquired by major museums: the MoMA in New York and the SFMOMA in San Francisco. The MoMA acquired capsule A1305, which had been located on the top floor of Tower A and was among the best-preserved units. After restoration, it was displayed in an exhibition titled "The Many Lives of the Nakagin Capsule Tower," showcasing the building’s history and transformation over the decades. The legacy of the Nakagin Capsule Tower now stretches across the globe. While 23 of the capsules have found new homes in museums, hotels, and offices, the rest were reduced to rubble. In Tokyo, the site of the former tower is set to become the location of the Pullman Tokyo Ginza hotel, a far cry from the original vision of a self-renewing architectural structure. The story of the Nakagin Capsule Tower is one of both failure and preservation—a testament to the challenges of experimental design and the unexpected ways in which cultural heritage can be safeguarded.