The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.

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

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

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

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

An exquisite grouping of structures made from 10 tons of invasive saplings.

The 19th-century ruins hide deep in an overgrown forest.

In Paradise Cemetery resides a mysterious headstone with a strange inscription.

This huge repository of local history housed in an old J.C.Penney's is home to the largest model train set in Southeast Texas.

Tucked away down this Baytown alley exists a one-of-a-kind art exhibit of technicolor umbrellas.

The folks at the Devil's Rope Museum want you to get hooked on barbed wire history.

Campus tradition says couples who walk beneath this enormous oak will stay together forever.

Nestled in the heart of a Texas town is a dreamy secret garden dating back to the 1940s.

Search for traces of the dinosaurs that roamed here more than 90 million years ago.

The deadly but beautiful ornamental oleander was planted all over the island of Galveston after the hurricane of 1900.

A taste of Middle Earth, in the middle of the Bayou City.

This beautiful grotto is one of those places where you can't believe you're just outside Austin.

This water tower slanted at an uncomfortable angle off the old Route 66 was an ingenious marketing ploy.

A wacky, UFO-shaped house in a suburban neighborhood.

A park filled with vibrant mosaics created by more than 300 folk artists.

An abandoned movie set in the desert of West Texas.

A little bit Wonkatania, a little bit pink elephant.

Ghost town with a beer-drinking goat for mayor.