A centaur is a creature from Greek mythology that is half-human and half-horse. The upper body of a centaur is that of a human, while the lower body and legs are that of a horse. Centaurs were said to live in the mountains of Thessaly and were thought of in many Greek myths as being as wild as untamed horses. They were often portrayed as being lawless and inhospitable beings, the slaves of their animal passions. However, some centaurs were not unfavorably portrayed in Greek myths, at least when they were not under the effects of wine. The most famous centaur was Chiron, who was known for his great wisdom and as the tutor of the god of medicine Asklepios and the heroes Hercules, Achilles, and Jason. A Centauromachy, which is a battle between centaurs and gods or heroes, was a popular subject for decorative sculpture on ancient Greek buildings, particularly temples.