The world's largest pizza was created in December 2012 in Rome, Italy. Named “Ottavia” in honor of the first Roman emperor, it measured 1261.65 square meters (13,580.28 square feet). This massive pizza was made with gluten-free ingredients to promote healthy eating. The pizza was prepared by Dovilio Nardi, Andrea Mannocchi, Marco Nardi, and Matteo Nardi. It featured a variety of toppings, including tomato sauce, mozzarella cheese, and various vegetables. The creation of this enormous pizza was recognized by the Guinness World Records as a remarkable culinary achievement.