The Miniature Railroad & Village at the Carnegie Science Center has been a Pittsburgh tradition for over 60 years. Whether at the old Buhl Planetarium or now at the Science Center, generations of Western Pennsylvania families have visited this exhibit. Growing up in Western Pennsylvania, this was an annual Winter and Christmas time attraction. In fact, the exhibit traditionally was only on display for four months from November through February. When I began writing about our visit to the Miniature Railroad, I kept struggling over how to discuss the exhibit's history while including the enjoyment of my two young sons during their first visit. You see, neither of my boys wanted to leave the display. Colton, my oldest, insisted on going around the display multiple times to see everything. While Nash, my youngest, would stay at a certain area minutes at a time in amazement and waiting for the next train to come by. I think that the experienc...