Hercules. Known for his famous Twelve Labors, Hercules defeated the Nemean Lion (otherwise known as Leo) and the many-headed beast called Hydra. While fighting Hydra, Hercules also killed the little crab, Cancer. It is also said that he rescued many damsels in distress, including Hesione, the princess of Troy. He fought with other immortals, including Apollo. And he helped the gods in their epic battle against the Giants, who tried to take over Mount Olympus.

One of the finest Globular Clusters in the Northern sky is M13, located in the keystone of Hercules.