This is my favourite building in Tokyo, the Nakagin Capsule Tower. Now hidden in the shadows of Shiodome's skyscrapers, this piece of metabolic architecture has been completed in 1972 and has that distinct retro-futuristic charm about it that's so rare in a land where old buildings are demolished and the ground is sold faster than you can watch. And guess what, they've been wanting to tear this down for a long time. The architect Kisho Kurokawa fought against this, but he died in 2007 and I guess in the long run the fate of this building is already decided upon.
I found a video featuring an interview with Mr. Kurokawa. It also shows the interior of a model room and some pictures of the building. http://www.youtube.com/watch?v=9roy5mbz5fk
