Esteban: Child of the Sun, known outside of Japan as the first season of The Mysterious Cities of Gold, is a French-Japanese animated series which was produced by MK, NHK, DiC Audiovisuel, CLT and ani
Mu is a lost continent introduced by Augustus Le Plongeon, who identified the "Land of Mu" with Atlantis. The name was subsequently identified with the hypothetical land of Lemuria by James Churchward
Underwater structures claimed to be remnants of Mu, near Yonaguni, Japan