The Yonaguni Island is the western most part of Japan and contains many mysteries. It is home of the largest moth in the world as well as an extremely small pony called the Yonaguni Pony. It is also very famous for its diving areas.
The island, however, is most famous for the Yonaguni Monument. The monument is underwater and is nicknamed the Japanese Atlantis. It is debated whether the structure is manmade or natural. It features rock appearing to be roads and waterways.
Some say that it is a lost civilization and others say it is natural rock that formed from tectonic plate activity and sediment rock. Check out the video!