The Craggy Mountain Line has an odd assortment of cars and "trolleys" scattered around its loading area. Many of them are in the process of being restored. You are free to do self-tours of the cars and there is usually someone nearby that can answer any questions that you may have.
The people the Craggy Mountain Line are great. The 90-minute ride, which includes a 30-minute layover at Woodfin Park, is loud and bumpy but definitely fun. It's a fantastic way to kill a couple of hours on the weekend. Take a look at a few more pictures over on my photo site: Bubba Harmon Imaging.