Rainbow Tower, Niigata (2014/08/02 15:49:12+09:00) August 5, 2014 1600 × 2400 Asia 2014: Niigata & Nagaoka Rainbow Tower, Niigata (2014/08/02 15:49:12+09:00) And we found the Rainbow Tower, but not the geocache that’s supposedly there. And it doesn’t look like you can go up there anymore for a look around.