Historic
Chicago "L"
Since 1892
The Chicago "L" (short for "elevated") is a rapid transit system serving the city of Chicago and some of its surrounding suburbs in the U.S. state of Illinois. The system is operated by the Chicago Transit Authority (CTA), one of the three service boards of the Northern Illinois Transit Authority (NITA). It is the fourth-largest rapid transit system in the United States in terms of total route length, at 102.8 miles (165.4 km), as of 2014, and the third-busiest rapid transit system in the United States after the New York City Subway and the Washington Metro.
Source: Wikipedia / Wikidata
Nearby