McDonald's is a multinational fast-food restaurant chain that is one of the world's largest and most recognizable brands. Founded in 1940, McDonald's operates a network of franchised and company-owned restaurants serving a diverse menu of burgers, fries, chicken, sandwiches, and other fast-food items. The company is known for its iconic Golden Arches logo, distinctive branding, and commitment to quality, convenience, and affordability. McDonald's restaurants can be found in over 100 countries worldwide, serving millions of customers each day. McDonald's headquarters is located in Chicago, Illinois, United States.