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

This national park dedicated to the tallgrass prairie ecosystem still displays its military past.

A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

This unique structure in suburban Austin is made up entirely of other people's castaways, and constantly changing.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

Hollowed out cedar log tubs set in an ancient towering forest.

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

A beautiful geyser under environmental threat.

A heavenly experience, right here on Terra Firma.

Just a few miles from downtown Atlanta is a trail covered in a crazy collection of outsider art.

The first declared National Monument in the United States.

A rare view of a preserved Victorian science museum.

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

A beautiful 62-acre Catholic shrine and botanical garden.

A museum dedicated to the history and exploration of both popular music and science fiction.

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

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

Hidden in the hills of Hollywood, this secluded Oz-themed garden is dotted with dozens of thrones.

An emporium for the weird, creepy, rare, and just plain gross.

Enormous lake at the bottom of a unique cave system.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

Stroll through a wonderland of stupendous moss-covered trees.

The rocks in this arid basin leave trails of movement behind them.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.