You have New York City, New York as the Gateway to North America on the Atlantic Seaboard. You have San Francisco, California as the Gateway to North America on the Pacific Seaboard. These two major cities are at each end of Interstate 80. What is so important about Interstate 80? It passes through the southern region of the metropolitan area of Chicago, Illinois, which is known as the Hub of North America. How is Chicago the Hub of North America? It has one of the busiest airports in the world (O’Hare). The Chicago metropolis is served by seven major interstate routes and eight U.S. Routes. As for railroads, Chicago is a railroad haven being served by more railroads than any other metropolis in North America, and it is the home of the Pullman National Historic Site. In fact, Trains Magazine calls…