HOLE TO HELL : Kola Peninsula of Russia.
The Kola Superdeep Borehole, situated in the depths of Earth, is considered as the gateway to hell by some. This manmade hole, which stands at a depth of 40,230ft (12.2km), is the deepest artificial point on Earth. Despite the Soviet's nearly 20 years of drilling, the project was discontinued in the aftermath of the Soviet collapse, leaving the drill bit only one-third of the way through the Earth's crust to the mantle.
