Mystery AtlasPerson
Masaaki Kimura
A marine geologist at the University of the Ryukyus who has argued since the 1990s, based on his own dives at the site, that the Yonaguni Monument is a man-made structure, possibly the remains of a submerged ancient civilisation.
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Theories & Explanations
Masaaki Kimura popularised Yonaguni Man-Made Monument Theory.
Places
Masaaki Kimura was used to analyse Yonaguni Monument — Over a hundred of his own dives at the site since the 1990s underpin his man-made interpretation.