Dave Maher shows off a portion of the world of model trains he created in his Londonderry basement. LONDONDERRY — Trains seem to run in Dave Maher’s family.

Richard Fifield’s Epsom basement is a bustling depot.Rich Fifield gives a demonstration of his model railroad setup at his home in Epsom on Monday. He’ll be at Sunday’s model railroad show ...

"Everybody had Christmas trees and trains running underneath them," said the president of the Western Pennsylvania Model Railroad Museum.

Robert Johnson specifically bought his home because of his dream to build a giant model railroad. He spent the next 21 years building the display in his Menomonee Falls basement.

THIS MAY LOOK LIKE A DISPLAY OUT OF TRAIN MUSEUM, BUT IT’S NOT. THIS MODEL TRAIN SET IS INSIDE RENE AND NANCY HARMS CRANBERRY TOWNSHIP HOME. >> IT TOOK OFF INTO TAKING OVER OUR WHOLE BASEMENT ...

I was allowed to go into the basement once a day to work on my trains and that kept my sanity.” Urquhart said for him, playing with his model trains is therapeutic.

Model trains run year-round at Union Station. But during the holiday season, the exhibit expands from 8,000 square feet to 10,000 square feet.

The Clark County Event Center at the Fairgrounds was packed with model railroad enthusiasts Saturday for the return of the Great Train Show.

This post has been updated to correct the hours of the Masonic Village & Elizabethtown Model Railroad Club train display on Dec. 8.

Visitors can witness the miniature world of trains in action, with numerous model trains chugging along the tracks, tunnels, and bridges.