The Yonaguni monument is impossible to investigate fully by diving. With the the help of survey technology, we can drain away the water to show the exact details of this mysterious structure. | National Geographic TV

The Yonaguni Monument and the Pyramids of a Sunken World | Historistic

The Yonaguni Monument, located off the coast of Japan’s Yonaguni Island, is a massive underwater rock formation that has sparked debate about its origins. Some researchers believe the monument could be evidence of an advanced civilization that predates recorded history, possibly dating back over 10,000 years. The monument's intricate, terraced design, with sharp angles and flat surfaces resembling architectural features such as staircases and platforms, suggests intentional construction rather t

134K views · 4.1K reactions | The Yonaguni Monument is one of the many mysteries of the deep that the #AncientAliens experts explore during tonight's all-new episode, starting at 9/8c on The HISTORY Channel. | Ancient Aliens | Facebook