Chicago by L

Commuters at the 95th Red Line Station pay their fares to an unusual soundtrack: music from a DJ booth. Called AESOP, the booth is a public art installation by Theaster Gates meant to enliven commutes. Two of the booth's DJs share some of their favorite tracks to spin. 

If weekend closures of Red Line stations are an inconvenience, comfort yourself with the thought that it could be worse. More than 25 years ago, the Green Line—like the Red Line today—needed maintenance and modernizing. Back then, the CTA shut down the whole line—for more than two years.

Geoffrey Baer and a production crew have been riding the rails filming his next special, Chicago by L, and we caught a behind-the-scenes look at the program on a train car built in 1959. Watch Geoffrey speak with the show's producer and a CTA employee.