This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

This maze-like slot canyon is a unique gem within an already fascinating geological area.

St Bernard de Clairvaux Episcopal Church, better known as one of the oldest European buildings in the Western Hemisphere.

This small-town Connecticut restaurant gives each diner a free book from its vast library.

Mysterious ancient boulder carved with petroglyphs in the mountains of Western North Carolina.

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.

A castle built by an eccentric medieval enthusiast in rural Ohio.

The longest navigable underground river in the United States is home to countless blind and albino animals.

Explore 10 acres of environmental sculptures.

This massive store is home to an eccentric collection of vintage, retro, and peculiar goods.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

European castle ruins in an American state park are actually the product of death and grief.

This "zoo" is a cross between a junkyard and a sculpture garden, featuring animals you won't see anywhere else.

A mysterious monument meant to be a guide into "an Age of Reason" was destroyed after an apparent bombing.

A clear blue swimming hole with hidden caves, still unexplored.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

The remains of an idyllic small town built for the film 'Big Fish' still stand around a rundown main street.

This natural wonder drops 16 stories straight down through rare flora and streaming waterfalls.

The scuba diving training facility was named for the steam that rises from the cave's chimney.

The largest earthwork effigy in the world.

A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

Collapsing castle on the Hudson river was once the storage site of military surplus business.