In a small building tucked away in an industrial part of town, you'll find the Tennessee Central Railway Museum, which will appeal most to train lovers and history buffs. The exhibit space is small; more interesting are the early 1950s passenger cars and engines in the train yard outside. (You may want to call ahead to make sure these are open—the museum has an all-volunteer staff, and the trains are not available for viewing all the time.) Even more fun is one of the many themed railway excursions that begin at the museum and head east up the Highland Rim as far as the Cumberland Plateau. You can take a winery trip, take the kids along for ride on Thomas the Steam Engine, take a murder mystery ride, or view fall foliage. Some of these outings travel more than 200 miles and take up the better part of a day. Check the website for schedules and pricing.