This was found on the front page of Wikipedia, and it immediately caught my eye. It is an institution dedicated to the preserving and showcasing of truly bad art, often scavenged from the rubbish. They have many works for display, a couple of which have even been stolen from the MoBA and then returned because they were so awful. The official website has many of their pieces up for free viewing, and you can sign up to give your opinion of any and all paintings.
(Not an April Fool’s)