 Just where is Gotham City located? Due to the many puns on New York  City landmarks which appear in this series ( the New Guernsey  Turnpike, Spay Stadium, Short Island Sound, the Washington Tunnel.  etc.), its commonly believed that Gotham City IS New York City.  Apparently not, as we discover in this episode: when the Jokers  electric chairs fail to electrocute the Dynamic Duo, and the city  below simultaneously goes dark, the Joker exclaims, "Gotham City  must be having a power failure, just like New York!"