Most Westerners have heard about the legend of Atlantis, but how many have heard about the lost kingdom of Nan Mador? Like Atlantis, Nan Mador was supposedly as big as a continent, and stretched from Micronesia in the South Pacific all the way to Easter Island off the coast of Chile.

But whereas we have no physical evidence of there ever being a city of Atlantis, there are ruins in the South Seas of a civilization that very well could have been Nan Mador. Located approximately 3,700 km south-southeast from Japan is a collection of 92 artificial islands that are surrounded by a huge wall of coral and basalt. These "floating ruins" are believed to be all that's left of a great city.

At 2 p.m. on Feb. 9, TBS will present a special 90-minute documentary about Nan Mador, hosted by Egyptologist Sakuji Yoshimura and actress Sachiko Kokubu. From approximately A.D. 500 to 1600, the islands comprised the kingdom of Sautoral, which was a city resembling Venice, but in the middle of the ocean. Transportation was provided by boats that traversed canals between the islands.