The Biggest Hole In the World
It’s a diamond mine in Mirna, Siberia. It measures 525 m deep and 1.25 km in diameter. The suction from the hole is so powerful that helicopters flying over it have crashed.
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It’s a diamond mine in Mirna, Siberia. It measures 525 m deep and 1.25 km in diameter. The suction from the hole is so powerful that helicopters flying over it have crashed.
