The Junction Valley Railroad in Bridgeport, Michigan, United States, is a model railroad but not the tabletop variety we are familiar with. Built at the scale of 1:4, this 600-ton behemoth is the world’s largest quarter-sized railroad. It has real diesel engines, albeit scaled-down in size, but strong enough to pull steel cars and real human passengers over a 5% gradient. As Lionel.com writes, Junction Valley Railroad is “too small to be considered a commercial railroad and too large to be thought of as a model railroad.”

Photo credit: www.railroadmichigan.com