Chicago was a stop off on a work trip. We were on final approach to O’Hare and I was looking out of the window at the industrial areas that surround the airport. There are rail tracks scattered throughout these areas so seeing trains is not a surprise. However, I was a little caught out by what appeared to be some old Metra commuter cars parked up in one space. They have clearly been out of use for a while. If anyone knows who they belong to, please let me know.