The first set of trains were the tiny IN town where hubby grew up and I spent several years. There are a few train cars set on an old track by the new walk way. The Lion's Club actually has their meetings inside the train cars.
When we were with my mom, we went to this fun restaurant for lunch, Monon Whistle Stop Restaurant. There are trains running inside the restaurant by the ceiling and they have a lot of train antiques on display. Outside, they have a whole rail system set up for viewing (and apparently climbing on).