...THING...supposedly a piece of "sculpture" which now hangs in the atrium of the Howard Street Red Line station?
It hangs as roughly two-thirds of a circle, and serves only to confuse the eye with its overabundance of reflections.
It kind of reminds me of the shiny things (aluminum pie plates, and small pieces of mirror) we used to use to scare birds away from our truck garden back in the 70s!
Perhaps it's meant to do just that--SCARE people away from Howard Street!