South Dakota takes its roadside attractions very seriously. Well... sort of. If you like your sightseeing on the slightly weirder side, add these to your list: theworldsonlycornpalace, Mitchell | A whole palace decorated with real corn, grains and grasses. The murals are redesigned each year, so even repeat visitors have something new to see. World’s Largest Prairie Dog, Badlands Ranch Store | Standing outside the Badlands Ranch Store, this six-ton concrete prairie dog is exactly the kind of thing you pull over for. Bonus points if you spot one of his considerably smaller, real-life neighbors nearby. World’s Largest Pheasant, Huron | Standing 28 feet tall, this giant bird has been welcoming visitors to Huron since 1959, a larger-than-life nod to South Dakota’s pheasant country. Heavy Metal Sue, Faith | Big, bold and made for a roadside photo op, this metal sculpture made entirely out of recycled agricultural equipment and automotive parts is one of those wonderfully unexpected So...