Themed to the bottom six circles of hell in Dante's Inferno. From top to bottom:

Fourth Circle - The miserly and greedy are doomed to push rocks back and forth.
Fifth Circle - The angry are doomed to wander a miserable swamp.
Sixth Circle - Heretics burn in a pit of fire.
Seventh Circle - The violent boil in a pit of blood.
Eighth Circle - The fraudulent wander a never ending pit.
Ninth Circle - The great Satan himself is encased in ice for eternity.