The article noted that model trains play a large role in Pittsburgh's holiday celebrations due the the fact that it was a "steel and coal-producing behemoth" during the mid-20th century. Bill Humphrey, the public relations director anf vie president of the Western Pennsylvania Model Railroad Museum stated that "People think of us around Christmas time, which all goes back to the tradition of setting up a model train around your Christmas tree."
For a full list of Realtor.com's Best Cities for the Holidays, take a look at the full article here.