1 – Zeus The Great Dane
Measuring an incredible 111.8 cm (44 in) from foot to withers, the Great Dane from Otsego, Michigan, USA was the same size as an average donkey.
Standing on hind legs, he stretched to 7 ft 4 in and towered over his owners Kevin and Denise Doorlag.
The huge hound weighed 70.3 kg (155 pounds or 11 stone) and would eat around 12 cups of food a day (equivalent to one whole 30-lb bag of food).
Unfortunately, Zeus, the record holder for the world's tallest dog, had passed away at the age of 5 from symptoms of old age (the average lifespan for Great Danes is just six to eight years).
Next Up: Check out the video on the next page to see all the 5 BIGGEST Dogs in the World with full detail!