The Yonaguni Monument is a massive underwater rock formation off the coast of Yonaguni, the southernmost of the Ryukyu Islands, in Japan, 110 km east of .\r<br>\r<br>\r<br>\r<br>\r<br>\r<br>Top 5 Mind Blowing Underwater Cities. The mysterious and mind blowing cities underwater are pretty amazing. Spooky, scary and cool at the same time. 5.\r<br>\r<br>Worlds Top 5 Places Surrounded By Mystery We have World 5 List presenting today! 5. Giant Stone Spheres of Costa Rica One of the strangest mysteries in .
