The only building in the city that could house the Justice League’s super-powered ... s greatest comic book heroes. Visitors can help Batman as he fights off the Joker, who has sabotaged the ...

The Joker's scars in an Earth-3 origin story turned him into a hero, inspired by humiliating Owlman. Owlman scars Jokester after being mocked, inadvertently creating a hero instead of a villain.