"Something Terrible Climbed Out of the World's Deepest Hole"

What is the deepest hole in the world? Is it the Kola Superdeep Borehole in Siberia? Or is in the ocean in the Great Blue Hole in Belize? We investigate this and mysterious lake hole in Berryessa and why people pay $3 to visit the Berkley Pit in Montana. #offthekirb #kolasuperdeepborehole #science