Train-A-Palooza Christmas Train Show is a two-day model train show held at the Grapevine Convention Center in Grapevine, Texas, in the Christmas Capital of Texas. Model train enthusiasts from across the region gather for working layouts in all sorts of gauges, plus vendors and private collections selling trains and accessories. Kids will love the train-related toys, and there are train rides in the parking lot from Choo Choo Express.