15 Deepest Holes Ever Dug by Humans

It's not just dogs that like digging holes! Humans have been digging for about as long as we've been on the planet. Although our digging has fewer bones and fewer poops. Still, we just seem to thrive on building tunnels in the Earth for whatever reason! From a guy that built his own well to a long-standing British well, here are the 15 Deepest Holes Ever Dug by Humans.

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