My wife and I are taking a "family truckster" type vacation August 23 through September 2. We are driving east from Oklahoma on I-40 with no destination or plans in place. Anyone know of any "have to go" places or events along the way or during these dates? We've been to Graceland, Grand Ole Opry, Lookout Mountain, etc... (Tourist type places) We are looking for more off the beaten path type of places for short day trips along the way. Heading north or south off of I-40 is definitely on the table as well. We would like to avoid major cities (Atlanta, DC, Philadelphia, Charlotte, etc...) just because of the traffic.