We were so taken with Lexington, Kentucky, that for the first time since setting out we evoked one of the privileges of full-time travel: on the spur of the moment we decided to extend our stay by a few days. Aside from the bourbon, the star attractions in Lexington are the horses. Driving around the countryside, with beautiful, sprawling, well-manicured horse farms everywhere, was our second favorite pastime. There was plenty of animal viewing—and the horses didn’t seem to mind when we stopped and stared.