The tallest dog in the world is a Great Dane named Zeus.
Zeus measured 44 inches tall at the shoulder and 7 feet 4 inches on his hind legs.
He held the Guinness World Record for the tallest dog from 2012 until his death in 2014.
Great Danes are known for their large size and can weigh up to 200 pounds.
They are gentle giants and make great family pets.
Other large dog breeds include the Irish Wolfhound, English Mastiff, and Saint Bernard.
Despite their size, large dogs require regular exercise and a balanced diet to stay healthy.