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Yonaguni Monument

added28 August 2026

An underwater formation off the Japanese island of Yonaguni with flat terraces and right angles. Some read it as a sunken city, others as natural sandstone split along its bedding — the argument is still open.

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24.43583, 123.01139

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Hangzhou and the Airport Closed for an Hour

On the evening of 7 July 2010 Xiaoshan airport at Hangzhou stopped work for almost an hour: controllers logged an unidentified object in the zone and eighteen flights were diverted. Passengers and residents photographed a bright trail in the sky. It is a rare instance of a report of an unidentified object shutting down a major airport. Days later the authorities said the phenomenon was connected with military activity and gave no details. The likeliest reading is a missile or aircraft trial; a contrail lit by a low sun produces exactly this picture, and the photographs are consistent with it.

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Abandoned buildingGreen

Hashima Island

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Anomalous zoneBlack

Devil's Sea

A stretch of the Pacific south of Japan known as the "Dragon's Triangle", a Pacific counterpart to the Bermuda one. Its reputation came from fishing vessels lost in the late 1940s and early 1950s.

1414 km away

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