See the remains of the tunnel cars which were left behind after abandonment. Once your elevator ride is over, climb aboard one of the special passenger cars used to take visitors and dignitaries on tours of the tunnels system. Once aboard, see how the motorman works his controller to drive the train through the dark tunnels. Look over his shoulder as the train passes through a grand union. See great action shots of the trains running through the tunnels.
Trains lurch into side tracks and the trolley pole sparks up on the overhead wire.
Follow the trains into department store basements to watch locomotives shunt cars in and out. See workers loading packages into waiting cars. If you are a Chicago freight tunnel fan, you simply must have this video in your library.