The World's Smallest Dog Meets the World's Tallest Dog

World’s biggest dog, meet the world’s littlest dog. Guinness World Records brought Giant George, who stands 43 inches high and weighs 245 pounds, to meet Boo Boo, who stands — if you can call it that — at a mere four inches tall in Central Park to celebrate the launch of its latest records book. Talk about a dog day afternoon.