If you're passing through Elkhart, IN and have a few minutes, a stop at the RV Museum is a good place to stretch your legs. The only section worth looking walking through is that displaying RVs from years past and it's worth the stop. If you're travelling the turnpike the museum is within site of the turnpike, so it won't take you far from your route. http://www.rvmhhalloffame.org/