Medusa heads are representations of the mythical creature Medusa, known from ancient Greek mythology. Medusa was one of the three Gorgon sisters and was famous for her hair made of snakes. In art and literature, her image often symbolizes danger and transformation, as anyone who looked directly at her would turn to stone. In ancient times, Medusa heads were commonly used as protective symbols, often seen on shields, buildings, and jewelry. These depictions served as a warning against evil and were believed to ward off negative influences. The Medusa head remains a powerful symbol in various cultures today.