These characteristics are pushed to their peak in the friezes of the Great Altar of Pergamon, decorated under the order of Eumenes II (197-159 BC) with a gigantomachy stretching 110 metres in length, illustrating in the stone a poem composed especially for the court. The Olympians triumph in it, each on his side, over Giants most of which are transformed into savage beasts: serpents, birds of prey, lions or bulls. Their mother Gaia, come to their aid, can do nothing and must watch them twist in pain under the blows of the gods.