Nan Madol is a large stone city on the Micronesian island of Pohnpei in the Western Pacific. The entire site covers 170 acres and according to Frank Joseph is comprised of an estimated 250 million tons of basalt!(b) An article on the Smithsonian website offers very different figures(c).
The city has a series of canals connecting the structures, which were built on nearly a hundred artificial islands. It has been called both the ‘Venice’ and the ‘Atlantis’ of the Pacific. Conventional archaeology dates the site to around 1200 AD.
James Churchward claimed Nan Madol as part of his concocted Mu. David Hatcher Childress has proposed that the site was part of Lemuria, another invention. Erich von Däniken in his The Gold of the Gods was happy to claim that as a result of extraterrestrial intervention, the ancient Micronesians, had mastered flight and used this ability to transport the stone for the construction of the city!
In 1979, Bill S. Ballinger published Lost City of Stone , following the author’s visit to the island a few years earlier. In common with other commentators, he could not offer any credible explanation as to the identity of the site’s builders or its purpose.
Recent archaeological research in 2017, led by Mark McCoy from Texas Southern Methodist University, has, not unexpectedly, regenerated foolish speculation that the remarkable site might in some way be connected with Plato’s Atlantis(a).
(b) Atlantis Rising magazine #51 p.46 https://atlantisrising.com/product/issue-51-atlantis-in-the-bahamas/