If the pronunciation doesn't leave you tongue-tied, this New York park's legendary falls surely will.

The landscapes of this tropical island — from lava flows to lush plant life — will make you feel like you've taken a trip back in time.

No one believed the stories told by mountain men who first explored this area of Wyoming. Even today, you might not believe your eyes, so plan on more than one visit to see all the wonders.

Hike or bike on trails created by the Rockefeller family at this Maine getaway, the first national park donated entirely by private landowners.