Chicago is well-known for its "El" trains, or elevated trains, which run above ground. It is very nice to see the city instead of being in an underground subway. The trains run quite frequently and are easy to board. Payment options vary and signs are everywhere telling you where to go. More trains run during rush hour to accommodate the increased number of travelers. The stations even have "heating areas" to keep you warm during the Chicago winters. If you come to Chicago, you have to experience this one-of-a-kind mass public transportation system!
In an effort to improve the quality...