God of War seriesEdit
The Pillar of the World is a gigantic pillar located in the Underworld which holds up the world. In God of War: Chains of Olympus, the goddess Persephone develops a scheme in which she, with the aid of Atlas, will destroy the pillar, causing the entire world to fall into chaos. Kratos attempts to stop her, and the top of the pillar is where the two have their final battle. During the battle, Kratos also chains Atlas to the pillar with the Gauntlet of Zeus. After the battle is over, Persephone is destroyed, and Atlas is condemned to forever sit upon the pillar and hold the world on his shoulders.
This is why Atlas is seen in God of War II telling Kratos that he put him there. In God of War III, the Pillar of the World is depicted as a carving on the enormous gates that Kratos has to solve its puzzle in order to open it and head on to the Pit of Tartarus to reach Cronos. Apparently, directly above the pillar is the Island of Creation, as when Kratos takes the Icarus Wings in the Great Chasm, he falls right on top of Atlas, who stands on the pillar.