Unveiled : What Is The Yonaguni Monument? | Japan's mysterious underwater 'city'

In 1987, a local diver exploring off the coast of Japan’s southern Ryukyu Islands stumbled across a startling discovery. Twenty-five metres below the surface, he spotted a series of almost perfectly carved steps with straight edges. Known today as the Yonaguni Monument, this massive 50m-long-by-20m-wide behemoth is one of the world’s most unusual underwater sites.

Nicknamed "Japan’s Atlantis", the rectangular, stacked pyramid-like monument is believed to be more than 10,000 years old. Some think it’s all that remains of a long-lost Pacific civilisation, possibly built by Japan’s prehistoric Jomon people who inhabited these islands as early as 12000 BC. Others say that the site resembles natural formations elsewhere around the world with distinctly defined edges and flat surfaces, such as Northern Ireland’s Giant's Causeway, whose thousands of interlocking basalt columns were formed by a volcanic eruption millions of years ago.

Yonaguni Monument

Is Yonaguni Monument natural or man-made?
Are the Yonaguni ruins man-made?
What is the Yonaguni Monument theory?
Why is the Yonaguni Monument underwater?
Do people live in Yonaguni?
Why is Yonaguni famous?
What is the oldest ruins in Japan?
Are there any underwater cities?
How deep is the Yonaguni Monument?
What is the secret cave in Japan?
What is the oldest man made structure in Japan?
What is Yonaguni made of?
What is the oldest underwater ruins in the world?
Why were pyramids built by water?
How did pyramids get underwater?
What is the most hidden city in Japan?
What is the coldest city in Japan?
Is there a ghost town in Japan?

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