Here's some pizza knowledge to drop at your next pizza soirée. If you want to rekindle that whole feud about pineapple on pizza, let this be a reminder that it was invented by a Greek guy in Canada. Pizza is good, and absolutely crazy people like it too, which inspired this list of one pizza delivery driver's strangest customers.

Dish - The largest pizza in the world was 131 feet in diameter, and weighed 51,257 pounds