Arkham Asylum is an asylum in the Batman mythos that was inspired by HP Lovecraft, holding (or rather, failing to hold) most of Batman's Rogues Gallery. A link about it sent you here. It may refer to:
- Bedlam House, a trope once named Arkham Asylum
- Arkham Asylum: A Serious House on Serious Earth, a Batman Graphic Novel written by Grant Morrison and illustrated by Dave McKean.
- Arkham Asylum: Living Hell, a Graphic Novel set in the continuity that focuses on two new characters.
- Batman: Arkham Asylum, a Video Game made by Rocksteady Games that is loosely based on the aforementioned Serious House.