Gotham City was the base of operations for Batman.
This Gotham City was formerly dark, as seen in Burton's movies: Batman and Batman Returns. Somehow, the city changed from dark to lighted neon.
See: Gotham City (Burton films)
Riddler and Two-Face wanted drain the information from all the brains in Gotham City. In the end, both were defeated by Batman and his new partner Robin.
Batman & RobinEdit
Batman, Robin and Batgirl prevent Mr. Freeze, Poison Ivy and Bane in an attempt to dominate Gotham City with ice and vegetation.
Behind the ScenesEdit
When Joel Schumacher took Tim Burton's role as director he made Gotham more vibrant with bright neon lights and a vivid nightlife.