From a passageway made by giant sloths to a slinky tunnel bridge and an 'entrance to hell' - there are some extraordinary ...

“Hell on Earth” might not just be an exaggeration. Scattered about the globe are various locations that scientists believe could be entrances to the underworld, ranging from a volcanic ...

Near the Norwegian border somewhere in the depths of the Arctic Circle in Russia lies the deepest hole ever drilled, once called "the entrance to hell." The hole was a man-made creation through ...

Located in Turkmenistan's Karakum desert, the Darvaza Crater, also known as the Door to Hell or Gates of Hell, is a 70-meter-wide and 30-meter-deep methane-belching pit ignited decades ago.