Harley Quinn Wiki

This is why I didn't wanna get married here, the parking lot is a damn maze!
Poison Ivy

The Old Gotham Corn Factory is, like the name suggest an old corn factory located in Gotham City.

It was the dream wedding venue of Kite Man. In the episode "Thawing Hearts" he was scoping the venue out with his fiancee Poison Ivy and was horrified to discover his nemesis Condiment King wanted it for his own wedding the same day. They ended up losing the venue after Ivy had to leave prematurely, however, on the day of their wedding in "Something Borrowed, Something Green" Ivy made sure they got it back by having Frank the Plant eat Condiment King, this as a way of making amends with Kite Man after being caught cheating on him.