Ah, model trains. For people from 8 years old to 80, their slow chug and whistle around the Christmas tree, rug or tabletop is undeniably captivating. And whether you've retained that fascination since childhood or discovered it as an adult, the Great Train Show coming to Expo Idaho for two days in mid-January will be your train-filled winter wonderland. Self-described as the country's only coast-to-coast model train show, the event appeals to "modelers, hobbyists, families and the just plain curious" with an abundance of trains spread out across more than 200 tables, tracks and other modeling accessories on offer from vendors, kids' activities (including a train ride), free workshops and seminars, and plenty of models in action. Snag a ticket and let your inner kid run wild.