When your industry is based on memorable and iconic characters, and half of them are bad guys, you're going to need memorable and iconic prisons to hold them. Some comic book prisons only serve as villainous pit stops between capers, while others have been settings for influential storylines.
Some comic book jails are outrageous and fantastical in design, some are based on real prisons, and others really are real prisons. Nobody wants to be in prison, but prisons in comics are especially bad since you can count on above average amounts of escape attempts, riots, superpowers, and general danger. You're far more likely to see a coffin than the end of your sentence.These are the comic book prisons where you'd least like to serve time. Vote up the most nightmarish penitentiaries in comic books, the ones in which you wouldn't last a minute if you were locked up.
Arkham is technically a mental health hospital, but since it rarely cures anybody and its inmates are mostly murderous psychopaths, it's pretty much a prison. The frequent breakouts and incompetent security might be appealing to potential Arkham inhabitants, but you'll probably be in a straightjacket, so you'll only be able to watch as Joker escapes yet again. And if you try anything, you'll probably get punched in the face by Batman.
The Phantom Zone is a detention facility of Kryptonian design that casts criminals into an ethereal state of non-existence. The torture of this prison is that Phantom Zone inhabitants can still perceive the physical plane, they just can't experience it (or perpetrate crimes in it).
#26 on The Coolest Places in Comics
Iron Heights Penitentiary
Underneath Iron Heights Penitentiary, and its reputation for prisoner abuse, is an even worse facility called The Pipeline. Its warden, Gregory Wolfe, has the superpower to shut down the muscles of the inmates. This is where The Flash stashes his collars.
Blackgate is where Gotham stores its "sane" criminals. It's on a fault line prone to earthquakes, and whenever Arkham Asylum gets destroyed, inmates are likely to end up with psychotic new cellmates.