Mysterious Underwater Cities
Sunday, Aug 30, 2020, 6:59 pm
By:
Tony Williams
#9 Yonaguni Monument
When it comes to underwater rock formations the Yonoguni monument puts others to shame. Though some debate if the structure is completely natural, or human made, or merely modified, it still captures the imaginations of many. Because the Japanese don't know for sure, they refer to it as "ruins of submarines."
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