> A must do is to go to the top of the Gateway Arch

This is very true, but I just want to mention that the elevator cars to take you to the top are pretty small. The trip doesn't take long, but I happened to be put in a car with 3 other over 6 foot tall people and it was very cramped, even tho the 5th was a child. On the way down I managed to be put in with a short couple and their 2 young children so it wasn't as bad!

Marguerite in Chicagoland http://mtczajka.net