A digital rendering of the Gate to Hell, aka Pluto’s Gate. According to Discovery, “Pilgrims watched the sacred rites on the steps, took the waters in the pool, slept not too far from the cave and ...

“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 “hellhole” in ...

The entrance is small, but the moment they step inside, everything changes. The air feels heavier, the sound disappears, and the cave seems to pull them deeper like a trap. What started as exploration ...