Baby Storm King - except its Free! Huge sculpture garden set on 120 Acres of Land
Art Omi in Ghent, NY is an outdoor art experience that spans over several acres of land. Very interesting place to visit.
It's a great walk among art. I let my dog off the lead in the more secluded parts.
Awe-inspiring outdoor sculptures and architectural displays; you could spend a whole day here. Often have unique exhibits in the gallery as well.