Atlas was an interesting, legendary Titan. He was in a lot of stories, starting with the story of the exploits with the hero, Hercules.
Atlas led a battle of Titans against Zeus which lasted for ten years. Eventually Atlas was singled out by Zeus and forced to hold up the heavens as a special punishment. Hercules needed to get the golden apples from the Pleiades and asked Atlas for help. Atlas had Hercules to hold up the heavens while Atlas went to look for his daughters, who had the apples. Finally Atlas returned, but he didn't want to take over holding up the sky again. He had enjoyed his brief break. Hercules tricked Atlas into taking the load back by asking Atlas to hold it while he shifted the load. After a while, Atlas took it back from Hercules.
In Roman mythology. Atlas had Medusa's head in a sack. Atlas pulled it out and looked at it by accident, and he was turned to stone!
Atlas's father was Iapetos and his mother was Clymene. His brothers were Prometheus who stole from the gods seven times and Atlas also had a son named Epetheumus. Atlas and Pleione had seven daughters called the Pleiades, whose names were Alkyone, Merope, Kelaino, Elektra, Sterope, Taygete, and Maia.