There it stands—massive, stoic, and shrouded in mystery. On the rolling Salisbury Plain in southern England, Stonehenge rises like an ancient riddle etched into stone. It’s one of the most iconic monuments in the world, yet no one can fully explain why it was built, who exactly built it, or how those massive stones got there.

Welcome to a place where the line between the living and the dead feels paper-thin. A place where mist clings to the rocky earth, the air stings with sulfur, and volcanic vents hiss like whispers from beneath the ground. This is Mount Osorezan, often translated as the “Mountain of Fear,” one of Japan’s most spiritual—and strangest—destinations.