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.
Some of its peculiar details include:
-Two closely spaced pillars which rise to within eight feet of the surface;
-The “Loop Road”, a 5 m (16 ft) wide ledge that encircles the base of the formation on three sides;
-The “Totem”, a stone column about 7 m (23 ft) tall;
-The “Dividing Wall”, a straight wall 10 m (33 ft) long;
-The “Gosintai”, an isolated boulder resting on a low platform;
-The “Turtle”, a low star-shaped platform;
-The “Triangle Pool”, a triangular depression with two large holes at its edge;
-The “Stage”, an L-shaped rock.
Ancient Aliens Season – 02, Episode – 03 (Underwater Worlds)