The monument lies off the coast of Yonaguni Island in Japan and consists of sandstone and mudstone structures submerged on the seabed, including what seems to be a road, star-shaped platforms, and a pyramid. While some scientists believe it is a natural formation caused by earthquakes, Professor Masaaki Kimura of the University of Ryukyus argues the structures are too precise to be natural and speculates it may be a ruin belonging to the lost civilization of Mu.

2. This monument lies submerged off the
southern coast of Yonaguni, one of the
Ryukyu Islands of Japan. The monument
consists of a collection of sandstone and
mudstone structures, which seems to be a
road, star-shaped platforms and a pyramid
stuck to the seabed.

3. Beliefs
● Many people believe that the monument is a natural
formation. In fact, some scientist say it was created by seismic
activity like earthquakes.
● But Masaaki Kimura, a professor at the University of Ryukyus,
thinks is human made.

4. Masaaki Kimura
Professor Kimura thinks the
structures are too precise to be
accidents of nature. He also
speculates that this could be a ruin
belonging to the lost civilization of
Mu.

6. Did you know that...
It is believed that 20.000 years ago there was a stadium in
Yonaguni?