There is a lot of cool stuff to see at the Museum of Science and Industry in Chicago, but something I was especially impressed with is The Great Train Story. This is a model railroad system that features over 20 trains (including freight, Amtrak, Metra, and the Chicago “L!”) depicting rail travel from Chicago to Seattle. In addition to the downtowns of both cities, there are suburban areas, farmlands (which I somehow managed to escape photographing), and mountains:

You can find this display in the heart of the Transportation Gallery, and it’s worth walking around not just once, but at least twice, to take in all the miniature details!