I am on the last night of my stay in Chicago and I am left with a couple questions. Let me just start by saying this... Wow! what a great city! Those of you who live here must really appreciate it. I just can not get over how great a time I had. So here goes, why is it known as the "Second City"? and why do they say 2 rivers here flow backward? I have guesses to both, but want the straight dope from those of you in the know. Thanks to all who gave me suggestions in the last thread, I really got as much in as possible, still missed lots. I KNOW I will be back!