Deepest Holes In The World: Stories Behind These Revealed

Kola Superdeep Borehole, Russia

The locals call this “the well to hell”. Since 1979, this holds the record of being the deepest man-made hole in the world. Through this, experts were able to know geological data and most of this tells how small human knows about the earth below us. In 1989, it has recorded a depth of 40,290 feet.

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