This huge O-Scale model railroad exhibition fills a 10,000 square foot building with tracks layed seven levels deep. With more than 10,000 feet of track the exhibitin includes 125 trains, most of them more than 15 cars long and many running up to 300 cars. In March 2010 assembled and operated the world's longest model train consisting of 1203 cars and 26 locomotives totaling 1,112.06 feet. The train ran on a typical model layout traversing 720 degrees of turns and rising and falling almost 2 feet. The total train weighed almost a ton. The layout models the Chicago terminals, the luxury passenger trains serving that city in the 1950s and 60s, as well as points coast to coast served by Chicago trains. Typical visit lasts at least two hours and costs $4 for adults and $2 for kids.