Mythical muscleman is a term used to refer to two of the most famous figures in Greek mythology: HERCULES and ATLAS. HERCULES was a demigod, the son of Zeus and a mortal woman, who was known for his strength and courage. He completed twelve labors, including slaying the Nemean lion and capturing Cerberus, the three-headed dog that guarded the entrance to the underworld. ATLAS was a Titan who was punished by Zeus for rebelling against the gods. He was condemned to hold up the sky for eternity.