Serving over 68 million customers a day, McDonald’s easily stands as the largest and most popular fast food restaurant chain in the world. McDonald’s manages over 34,000 locations in 120 countries. Founded in San Bernardino in 1940, McDonald’s menu consists of burgers, chicken sandwiches, chicken nuggets, fish sandwiches, salads, breakfast foods, milkshakes, and soft serve. Over 400,000 employees work for McDonald’s worldwide. Restaurants usually fall under corporate ownership or franchise operation.