|“||We are in the furthest reaches of Hell — Limbo — where I send unruly souls for time-outs.||”|
in O Brother, Where Art Thou?
Limbo is the furthest part of Hell, where the most unruly of souls are placed by the King of hell. This realm is completely engulfed with countless thunderstorms in the midst of darkness and void, adorned by countless scattered skeletons. Crowley claims that despite it's lack of aesthetics, it more than makes up for that in security. Lucifer's cage is in this region of of Hell, hanging by hooks and chains in the sky, enduring the endless lightning strikes. There are other cages and contraptions on the surface, presumably used to torture humans and demons alike. In one of these cages, Sam Winchester, Crowley, and Rowena performed a ritual to project Lucifer from the Cage, into this one.
- The endless hooks and chains covering the sky near Lucifer's cage implies that this is where Dean was sent when he went to Hell.