Underwater Structure Thought To Be Over 14,000 Years Old & Man-made
Massive rock structure hidden 60-100 feet underwater found in 1987 in Yonaguni, Japan. Experts call it the greatest discovery in the history of underwater archeology. Its massive size is equivelent to 2 football fields. Geological evidence shows that it was submerged during the meltdown of the last ice age which means it was built over 14,000 years ago.