Abandoned Battleship Island, Japan housed what it should have with obscenely crowded apartments like this. Now, entire island is abandoned & restricted to the public. These derelict sky-scraping ghettos fall without an ear to hear them.
The tree house 'bird apartment' by Nendo, located in a forest in Komoro City in Japan's mountainous Nagano Prefecture. The treehouse has entrances to 78 nest spaces on one side, and a viewing space for one person on the other.