Tennessee Central Railroad...
Tennessee Central Railroad Museum
Cookeville is such a small place that it's hard to imagine anything being 'off the beaten path' in Cookeville, but the train museum probably qualifies. I was there for a couple of years before I took the time to see the museum when it was open. On a few of my walks, I wandered into town and looked at it from the outside, but I finally made time to see the whole thing.
People who aren't into railroading stuff might find it too boring for words. The museum is located in the old train depot in Cookeville and consists of a couple of rooms of railroad memorabilia and two cabooses from the days when trains ran cabooses and ran them through Cookeville. An hour or two would be more than sufficient to see everything, but I think it would be an hour well spent. The museum has photographs of Cookeville in the 'old days' and often positions those photographs near windows with the same view as the photograph. I enjoyed standing there looking at the scene from long ago and glancing out the window to see the same scene today. They are building a model railroad with a model of the Cookeville Depot on one side and a limestone quarry on the other. Many old-timers who worked on the railroad still lived in the area when they started the museum and one room has their pictures and shows a tape of them telling their stories. Another room is a recreation of the dispatchers office as it would have been when the railroad was in business.
I have photos of the place at Tennessee Central Railroad Museum.