This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

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

A psychedelic labyrinth on the San Francisco bay.

A hand-built folk art installation covered with messages of God's love.

Site of a former hidden treehouse in New Orleans.

The ghostly remains of an accidental sea.

A toxic ghost town sitting atop a massive coal fire.

An old vending machine serves up unpredictable beverages from its seemingly magical insides.

A snapshot of the city's fascinating voodoo culture.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

World's largest collection of serial killer artwork and other macabre exhibits.

An artsy hidden staircase leads to breathtaking views of San Francisco.

An emerald-green grotto just a short trip from Austin.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

A huge musical instrument played by the ocean.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

This bare tree might not have leaves but it is constantly clothed in festive decorations left by mysterious local benefactors.

The record holder for the world’s largest peach.

This set of rickety spaceships are prepared to give alien travelers a place to relax and go to the bathroom.

One man's extraordinary topiary garden in a small South Carolina town.

A reliquary of pop culture marvels, including the world's largest (and most terrifying) Jack-in-the-Box.

This museum remembers the tough Mormon trek across America through an intriguing array of artifacts.