The creature in Greek mythology said to have the ability to turn anything to stone with its gaze is the Gorgon named Medusa. Once a beautiful maiden, she was transformed into a monster as punishment. Medusa’s gaze petrified anyone who looked directly at her, making her a fearsome figure. Her myth symbolizes the consequences of beauty and the power of transformation, blending elements of horror with tragic fate. The tale of Perseus, who ultimately defeated her, illustrates themes of bravery and overcoming the monstrous aspects of existence.