A friend and I are planning a 12 days road trip from Houston to Chicago in the middle of September and this is what we've got so far:
From Houston drive to New Orleans. From NO go to Natchez and take the Trace Parkway all the way to Nashville (possibly at some point turning to go and see Memphis)...
After Nashville we don't really have any idea of what to do until we get to Chicago... and we'd probably have about 6 days left...
Is there anything worth checking out? We don't mind driving a lot. Only thing i found was Mammoth Cave in Kentucky
I heard very different things about St Louis and Indianapolis... some people say they are great and some other told me not to bother with them.... I was also thinking to drive all the way to Minneapolis and Milwaukee but not sure if it is doable.