A waterfall and cave near Arroyo Seco that inspired the writings of D. H. Lawrence, Willa Cather, and Mabel Dodge Luhan.

The 7,000-year-old calcium carbonate formation creates a magnificent natural bridge.

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.

No one knows exactly how deep the world’s deepest geothermal hot spring is.

Bonsai trees that are up to a thousand years old.

A little piece of the Shire is hidden behind a plant nursery in Port Orchard, Washington.

Walking by this fence is like strolling along a portal to various fictional worlds.

A bike being "eaten" by a tree is the real Vashon legend behind popular children's book, "Red Ranger Came Calling."

A beautiful footbridge with over 2,000 glass sculptures along the walls and ceiling.

A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

Deadly airliner crash preserved for those willing to climb and pay respects.

Thousands of pieces of art have been carved into the rock at the site of an ancient volcanic eruption.

Life-sized sculpture of a blue whale made of hand-recycled plastic trash.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

These aggressively sustainable art homes look like something out of 1970's science fiction.

Reproductions of nine banned oil paintings coyly hidden behind a curtain in a New Mexico conference room.

A multi-storied adobe complex has been inhabited for more than a thousand years.

Forever immortalized in concrete, this Simpsons etching was crafted by show creator Matt Groening.