Denny's is a popular American diner chain known for its round-the-clock service and extensive menu featuring classic comfort food dishes like pancakes, burgers, and milkshakes. With over 1,700 locations nationwide, Denny's is a go-to spot for families, late-night diners, and anyone craving a hearty meal at any time of day. The restaurant's casual atmosphere and affordable prices make it a favorite among diners looking for a satisfying and convenient dining experience.