Moontower Pizza Barin Burleson, Texas, holds the world record for the largest commercially available pizza. The size of their pizza, named The Bus, is 8′ by 2′ 8″. One must order it two days in advance. The basic Bus only has one topping and will set you back around $300, but additional toppings can be had for $25 each. I’ll have my usual – canadian bacon and mushroom, please.