Today, after lots of searching, I finally found the Nakagin Capsule Apartments in Tokyo! Hurrah! These were designed by architect Kisho Kurokawa in the 1970s, who also designed the Tokyo National Arts Centre, from my previous post. Each capsule measures 2.5 x 2.5 x 4 metres and can be detached separately or interconnected to make rooms larger. These apartments were the first example of capsule architecture to be built and used. They are a great source of inspiration for my new project, so pleased I have seen them in person!