Five hundred miles of driving the plains and prairies of Iowa, Minnesota and South Dakota are hard on the body and spirit. Nothing like a cob of sweet sweet corn to top up the tank. The Corn Palace of Mitchell can only be described as the corniest artwork I have ever seen, pun intended. The vastness of the plains of South Dakota had everyone a-maized (pun also intended). After six years of city-living we couldn't believe the unbroken vistas of green prairie grass and blue sky. We ended the day in Wall SD eating dinner at the famous drug store. Unfortunately we forgot to try the free water.