Weighing in at over 245 pounds and standing 43 inches tall, George is the Guinness World Record holder for the Tallest Living Dog and Tallest Dog Ever. The Great Dane, now 6 years old, is almost 100 pounds bigger than other dogs of his breed, twice as tall as an average Golden Retriever and about the same weight as four German Shepherds, 11 Beagles or 26 Shih Tzus.