I was most surprised by this Mississippi city. I didn’t know anything about it, but Natchez was recommended as a place to see historic 19th-century homes, built by isolated plantation owners wanting to get away in the summer and interact and socialize with each other. As cotton became king, the houses became ever larger and more elaborate. Now, they are historic monuments, and you can tour them while enjoying a view of the Mississippi River. It’s far off the beaten path — and my favorite discovery from my last road trip.