This is fantastic! I was just playing a game known as Dante's Inferno the other week and reading up about the actual person Dante. This is a fantastic visual of this circle of hell. Disturbing but awesome.
It's actually a little different. They have some similarities, but in Dante's Inferno, Dante travels through the nine circles of hell. This is actually a Aerial toll house which are from the Eastern Orthodox Christian belief. As you ascend to heaven after death, you must pass 20 toll houses run by demons.