Most of the people who saw this structure via Google Maps or from the window of an airplane have wondered if it’s something going on there and what people had in mind if there is something like a secret facility of the Japanese Government where they keeps aliens or Godzilla.
In fact, there is nothing like that there and although the structure is gorgeous, nothing happens there. It’s called Kaze-no-to and is only a ventilation shaft on the Tokyo Bay Aqua-Line which links Kisarazu City and Kawasaki City.
This man-made island is also called the Tower of Wind, and it took about 30 years to be completed. The views that you will see from there are probably breathtaking therefore we truly recommend as a sightseeing spot if you ever visit Japan.
I like Japan!!! ZXZ