The Bricktown Model Railroaders Association in Mount Union is hosting its annual Christmas Open House this weekend. Visitors can stop by from 9 a.m. to 4 p.m. on Saturday and Sunday at 300 West Small Street. Guests can tour the museum, view the intricate model railroad display of 1950s Mount Union, and even meet Santa Claus from 1 to 3 p.m. on Saturday. Admission is free, and the event offers treats and interactive experiences, including the chance to control a train.