In Greek mythology, the creature known for its ability to turn people to stone is the Médusa, one of the Gorgons. With snakes for hair, anyone who gazed directly at her would be instantly petrified. Médusa's story is a cautionary tale reflecting themes of beauty, power, and the consequences of offending the gods. She was ultimately slain by the hero Perseus, whose quest to obtain her head highlights his bravery and cleverness. Her decapitated head became a powerful weapon, representing both danger and protection in Greek lore.