I'm in Chicago for 2 days in July and always enjoy aerial views of a city. Out of Willis Tower and 360 Chicago, which one offers the best all round value for money (and less time waiting in a queue)? I know that "The Ledge" is unique but, as I'm not overly bothered about standing in a glass box, that's not the deciding factor for me.
I'm sure other people have probably posed this question before so which is best folks, Willis or 360? All help gratefully received.