In a battle of the titans, a U.S. Clydesdale, a U.K. Shire, and an Australian Shire might all be contenders for the title of World's Largest Living Horse. I think the Guinness record holder is Radar , a Belgian in Mount Pleasant, Texas, whose recorded height is 19 hands and 3 ½ inches at the wither. In 2007 a Tennessee Shire named Tina captured the title, but she died in 2008 ( read more ). The...