We are going to Texas for spring break, my step daughter and husband have never been to Chicago. We connect through ORD. We land at 9 am and don't leave again until 1.20 pm so I am thinking it would be cool to take the train into Chicago and have some pizza and go back. Am I nuts? My step daughter is 10 so it's not like a toddler- she won't slow us down.
Any suggestions on where to go in that time span?

Thanks