Thanks! I had an obsession with this place so I dragged a couple of buddies on a road trip to Chicago during the demolition. When we got there the JC Penney was all that was left.
A lot of people don't know the entire mall sat abandoned for 32 years after filming. More than three times as long as the actual mall was open!
So I've blown up period pictures of the building and I've figured out where the bricks came from in that column.
Wasn't there an Oldsmobile dealership inside the mall in the movie. Maybe, that's where your Oldsmobile fandom started. It is the best "fun" car chase scenes in history. Bullitt had "the" best car chase scene.