Standing at 19.3 hands (6ft 6in) tall this giant Clydesdale is Britain's real life War Horse. Britain's tallest horse, Digger, is being put through his paces with the royal regiment. Stationed with the Household Cavalry in Hyde Park Barracks, it is hoped the 145-stone horse will take part in the Queen's Diamond Jubilee celebrations as a Drum Horse in June. With his head up strapping eight-year-old Digger measures close to 9ft and his hooves measure 15in across. He eats up to four stone of food per day and guzzles 25 gallons of water. Digger is pictured above at the Hyde Park Barracks with trooper Robert Tonkin.