McDonald's is the world's largest fast food restaurant chain,[15] serving over 69 million customers daily in over 100 countries[16] in more than 40,000 outlets as of 2021.[17][18] McDonald's is best known for its hamburgers, cheeseburgers and french fries, although their menu also includes other items like chicken, fish, fruit, and salads. Their bestselling licensed item is their french fries, followed by the Big Mac.[19] The McDonald's Corporation revenues come from the rent, royalties, and fees paid by the franchisees, as well as sales in company-operated restaurants
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