The train goes through it over the student center at IIT ( Illinois Institute of Technology) Designed by Rem Koolhaus it is meant to buffer the sound of the train. Nice work on his part I think.
Charlie
I really really like this one CHarlie! It looks like the last leg on a Roller Coaster. You know how you always go through those tunnels right at the end where you unload. Very interesting because I'm thinking this isn't from a Roller Coaster at all. Hummm?