Warehouse 17 is a large warehouse located on a dock somewhere in New York City. The exterior, other than some broken windows, appears to be in good shape.
History[]
The Clown and The Clan[]
Warehouse 17 is where Joker and Shredder meet soon after Joker and Harley Quinn escape from Arkham Asylum through portals. It is unclear which of them arranged for the warehouse to be the place of their meeting. The warehouse is mostly empty but does contain some crates stacked against the walls. The fact that Joker has attached dozens of exploding chickens to the ceiling indicates that he and Harley arrived some time ahead of Shredder and his minions.
Greener on the Other Side[]
The meeting in Warehouse 17 concludes when Joker manages to spray Joker Gas in Shredder's face, sending him into fits of laughter and incapacitating him.