Gotham Art Museum

The Gotham Art Museum was mentioned in The Joker Blogs 2! and The Top 9 MrMPS2002 Mess-Ups.

In The Joker Blogs 2
In The Joker Blogs 2, The Joker mentions that he stole the million-dollar bill from the Gotham Art Museum

In The Top 9 MrMPS2002 Mess-Ups
This Mess-Up is credited as the #1 MrMPS2002 Mess-Up.