Medusa
Artists have made statues and paintings of Medusa for thousands of years.  Ancient Greeks and other ancient people painted Medusa's face on pots and doors and other things.  In Greek art from this time, artists usually painted or carved people looking out to the side.  Medusa was almost always carved looking out of the picture toward the viewer. This was so Medusa could scare evil things away.  These pictures of Medusa are called Gorgoneions. They are an example of using one evil thing to make other evil things leave, the same way Perseus used Medusa against his other enemies.