The world's tallest dog died at the age of seven in Arizona, USA . Giant George weighed more than 110 kg and was able to reach the height of 2.20 m standing on his hind legs. The sad news of the death of Giant George was announced on his Facebook page. Owner David Nasser said: it’s with a heavy heart we owned Giant George died last night. Giant George ate about 50 kg's of food each month. Giant George was so big he had his own queen-sized double bed inside the house the he slept on until he died last week.