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World's deepest hole sealed up for concerning reason
Deep in the Arctic Circle, in Russia, lies the deepest hole ever dug which was once called 'the entrance to hell'. The Kola ...
The Sun19d
Earth’s most terrifying holes from 40,000ft Soviet ‘well to hell’ to Mexico’s mysterious 500ft-wide blue ‘sea sinkhole’
It's an underwater sinkhole, known as a "blue hole" – and is believed to be the deepest of its kind. The giant hole is 498 feet wide and was only discovered by a diver in 2003. Read more on ...
Business Insider India5y
These are the deepest and largest man-made holes in the world
America might have landed on the moon, but Russia drilled the deepest man-made hole on Earth ... have said they can hear souls screaming in hell coming from it. After that, Germany and Japan ...