How-to: Riding the train. CTA's train system is known as the 'L' (a now-official name originally short for "elevated"). Trains serve over 140 stations located throughout the city and nearby suburbs, on elevated railways, in subways, or on the ground. Enter the station and pay fare. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.