Teen Tourist 1: "There's no way Chicago is bigger than Houston!"
Teen Tourist 2: "Seriously. It might be taller, but it's definitely not bigger."
Teen Tourist 1: "They have to be taller because that stops the wind from knocking over the shorter buildings."
Teen Tourist 2: "Then why don't the bigger buildings fall over?"
Teen Tourist 1: "I think the top few floors have screens instead of windows so the air can pass by."
--Submitted by Marni J.