Dante's Inferno is made up of 9 levels plus a few in the middle of those like "The Abyss" between circles 7 and 8, and the "Giants Well" between circles 8 and 9.
There is Limbo, Lust, Gluttony, Greed, Anger, Heresy, Violence, Fraud, and Treachery. It goes in that order and it is believed that you may chose your level once you have gotten far enough in the...
The first circle was limbo, the second held those who succumbed to lust, the third to gluttony, the fourth to greed, the fifth to wrath, the sixth to heresy, to seventh to violence, the eighth to...