I hadn't heard of Wilson's Creek Battlefield, and only stopped because I saw a sign from the freeway and thought "well why not?" I'm glad I stopped, because it is very interesting. The loop doesn't take too long to drive, so you can make it a short stop if you like. But if you have time, there is plenty to see along the way such as battery points, a home that was used as a hospital, and of course the battlefield itself.
This was an important battle in the early Civil War, as it dealt a blow to the the north and made the Union anxious about maintaining control of Missouri.