Every airport is different. If you take time to look around, they can be somewhat amusing in their own rights.
My airport is tiny, with only 6 gates. this is a new terminal, built about 5 years ago. So, as you laugh at my girls clowning around, notice the interesting walls. All of the walls, inside and out, are built of locally quarried granite. Isn't it pretty?
The Charlotte airport was huge. I didn't get a picture, but they have white rocking chairs all over the airport for travelers to sit in. But what I really liked was the pianist in the middle of this food court.
This airplane is hanging in the Denver airport, a gift from someone (I forgot to take a picture of the plaque so I could remember, of course). They also have these little brass dinosaurs embedded in the terazzo floors throughout the airport.
I didn't get pictures of the pirates in the airport: one sitting on a treasure chest, one standing, and pone scaling a wall. They were advertising a museum in Denver. It was pretty clever.
Tomorrow, we'll start the tour of US Route 287!