PHOTO ATTRIBUTIONS
"Three exchanges: CBOT, CME, and Chicago Stock Exchange" by John Picken. Photo is licensed by CC BY 2.0.
"Robots at the Science Museum" by Paul Hudson is licensed by CC BY 2.0.
"20170510 09 Metra & Amtrak Chicago" by David Wilson is licensed by CC BY 2.0.
"Illinois State Capitol" by Justin Brockie is licensed by CC BY 2.0.
"Chicago Airport - IMG_1510" by Nicola is licensed by CC BY 2.0.