This spa theme park lets its guests take a dip in pools of coffee, wine, or ramen broth.

An abandoned marine theme park has created a difficult experiment in dolphin rewilding.

This abandoned railroad tunnel is now home to a micro-colony of bats and a ghost train.

A castle hand-built by a Spanish dreamer in the Australian tropical jungle.

Every year, the town of Menton, France, turns lemons and oranges into giant sculptures depicting windmills, dragons, and more.

Stumbling upon this whimsical wooded garden is like stepping into an enchanted forest full of philosophical musings.

The world's first underwater farm is home to more than 700 plants.

A sunken idol welcomes parishioners to Davy Jones' Locker.

This domed temple was built in a hidden cave mouth as a refuge for sinners seeking absolution.

David Sedaris called it "The greatest shop in the world."

Giant, pink stuffed rabbit on an Italian mountain.

The oldest operating pharmacy in the world features 800-year-old recipes.

At the crypt of St. Mary of Eulogies and the Dead you are left alone to ponder mortality among piles of skulls.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

The glowing blue Nymphaeum of Emperor Tiberius.

Hidden in an Italian forest is a completely homemade amusement park that has taken a lifetime to create.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

A submerged archeological park still holds the wonders of a Roman Sodom.

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

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

The sign at the garden gate reads: "These Plants Can Kill."

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

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

Medicinal spa created with the discharge from a geothermal energy plant.