Medusa (mythology)

Medusa was a monster from Greek mythology that was one of three sisters known as Gorgons, she was the only one of them that could be killed and was said to be able to turn people to stone with a glance: her hair was said to be made of snakes and she has become one of the most iconic Greek monsters of all time.

According to legend Medusa's powers functioned even after her death as her decapitated head still had the power to turn a man to stone if not kept hidden from view inside a bag.