Help CHICAGO - places to jump from??

[IMAFRAIDDAVE]

I have been debating hanging for a while and am unsure if I have what it takes to actually pull it off, it was one of my backup plans anyways but i was never able to find a good spot to jump from.

Does anyone here live in chicago and if so do you know any good spots to jump from that are not very busy??? Most of the taller buildings I know of have no roof access or are residential.