1. Great Dane
This German breed is world-famous for its huge size. Remember the blue Great Dane, Giant George, previously recognized as the world's tallest living dog? His height was 109.2 cm. His record was later broken by another Great Dane, Zeus, who measured 111.8 cm in height from paw to shoulder. This breed is known as the “gentle giant” because of its loving and calm disposition. It needs minimal grooming and is considered an excellent family pet.