The Biggest Pizza Chains in America (Stacker): WARNING: Will Make You Hungry

"There are 350 slices of pizza consumed every second in the United States, and the average American eats pizza at least once a month. Pizza has been a staple of the American diet since the late 19th century and was named the fastest-growing segment of casual restaurant chains in 2017. How much does America love pizza? $45.1 billion in annual sales should give you a rough idea. To help you find your next favorite slice, Stacker looked through the Pizza Magazine Quarterly Power Report and rounded up the 50 biggest pizza chains in the country. Did your favorite make the list? Some are classic fast-food franchises, customizable and deliverable to our doorsteps in less than 60 minutes; others are brick-and-mortar family joints whose popularity necessitated expansion into every corner of the contiguous States." - stacker.com