Find the best Entrance - Arkham Asylum entrance tickets at Arkham Asylum, Inner London. You are invited to lose yourselves in the infamous Asylum, crossing paths with some of Gotham City's most iconic DC characters: Batman, Scarecrow, Catwoman, Poison Ivy and many more ... Set in a vast, multi-sensory recreation of the psychiatric hospital, Arkham Asylum will be an epic alternate reality, combining futuristic technology and interactive theatrics with a wholly original story to create an unforgettable experience.