March 23, 2018 – A CTA “L” train heads through the canyons of downtown Chicago as it approaches the Tower 18 interlocking during the start of rush hour in downtown Chicago, Illinois. This intersection is one of the busiest ones on the Chicago “L” line that circles the downtown area and branches out to other points around the Chicago area. – #jimstrainphotos #illinoisrailroads #trains #nikond800 #railroad #railroads #train #railways #railway #cta #chicagotrains