Although the majority of the academic society regard the rock formation as natural joint, Masaaki Kimura, a professor of seismology in University of the Ryukyus and some media believe it is an artificial (or artificially modified) structure engraved or built 2,000 to 3,000 years ago.
Masaaki Endoh | Takuya Kimura | Takeshi Kimura | Masaaki Shirakawa | Masaaki Sakai | Ihei Kimura | Takeo Kimura | Shintaro Kimura | Masaaki Yuasa | Masaaki Ōsumi | Masaaki Kukino | Masaaki Kozu | Masaaki Kimura | Mari Kimura | Kengo Kimura | Kaela Kimura | Ayaka Kimura | Asami Kimura | Akiko Kimura |