Canyon walls shrouded in ferns.

Experience a quartz crystal sound bath inside a storied, all-wood sound-chamber.

The haunting, dilapidated remains of a former poorhouse on Staten Island's Greenbelt.

One of the largest, oldest, darkest, quietest motel rooms in the world.

Olfactory delights in San Francisco's Botanical Gardens.

The second oldest continuously operating bar in Louisiana.

According to one local tradition, the entrance to the Voodoo underworld can be found in New Orleans through seven gates scattered throughout the city's French Quarter.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

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

Historic marionette theater features thousands of handmade puppets and free cups of ice cream.

Outsider Art Community.

Abandoned bridge hidden deep in the San Gabriel Mountains.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

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

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

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

A look into the Church of Scientology's deeply unfavorable view of psychiatry.

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

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

Each year these high desert hills are absolutely covered with poppy flowers in a surreal show of nature.

A mysterious castle built as a monument to lost love.

"Looks so real, it's scary!"

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

A miniature rainforest is growing inside of a Midtown Manhattan office building.