Ida Dwinal, 2, and her brother Gene, 4, of Peru study one of dozens of model railroad train layouts in varying scales Sunday afternoon at the Great Falls Model Railroad Clubhouse in Auburn. The club’s annual ExTRAINaganza continues next Friday and Saturday, from 10 a.m. to 4 p.m. Visit sunjournal.com to watch a video from the clubhouse. (Russ Dillingham/Sun Journal)

Amelia Blais of Lewiston points to a train coming around the bend Sunday as her brother, Logan, jumps for joy as they check out one of dozens of model railroad train layouts in varying scales at the Great Falls Model Railroad Clubhouse in Auburn. (Russ Dillingham/Sun Journal)

Ida Dwinal, 2, and her brother Gene, 4, of Peru check out one of dozens of model railroad train layouts in varying scales Sunday at the Great Falls Model Railroad Clubhouse in Auburn. (Russ Dillingham/Sun Journal)