Chicago "L" (elevated train)

I can see why Chicago gets used in so many films and TV shows. I got fascinated with the Chicago "L" (elevated train) whilst out there. Shots 1 & 4 from the Architectural boat cruise on my camera. Photo 2 & 3 on my Samsung s20 mobile phone of the 'Loop' at street level. Background: In August I headed off to the Punk Scholars Network Conference, Chicago, to give a talk about my 80s indie music past. Can I get a witness? Yes, my grown up son and daughter came along with me!