Pavlopetri, GreeceArcheologists estimate that Pavlopetri is around 5000 years old. Believed to be the oldest underwater city, Pavopetri was discovered in 1967, which seemed like ancient ruins.
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However, Blavatsky's writings mention that the Atlantean were in fact olive-skinned peoples with Mongoloid traits who were the ancestors of modern Native Americans, Mongolians, and Malayans.