Discover how the third largest U.S. city became the nation's most important hub, serving six of North America's largest railroads. Along with its robust commuter system, more rail traffic passes through Chicago than any other city in America.
 
This special 60-minute video from Trains magazine features historical information and contemporary footage of passenger and freight trains, commuter lines, stations, modernization projects, and hot spots - giving you an up-to-date, behind-the-scenes look at what makes this busy hub so special.