This is one of my favorite building in Chicago! Isn't it beautiful?! When I was in high school we took a field trip in my humanities class here and my teacher told us all to lay on our backs on the floor to get the full effect - much to the dismay of the security guards who then had to spend the next few hours sho-ing away high school seniors who were laying on the floor!
This building is awesome - it is worth visiting for the building itself. Can't go wrong with Tiffany glass!
There was also a kid laying on the floor when we went. :)