Have attended several of their exhibitions. Last o...

Have attended several of their exhibitions. Last one being the Troll Hunt. Certainly the coolest exhibit I've attended so far. The trolls are not only impressive, but hilarious too. My hats off to Danish sculptor Thomas Dambo.
I have not explored all of what the Arboretum has to offer, but very pleased with what I've seen.
Cantingy charges per automobile. Not the Morton Arboretum. They charge for every individual that's in your car. It gets expensive when you invite several of your friends (in my culture, you invite, you pay).