Kings Cross Station pays tribute to its role in Britain's best-selling book series.

The fairy tale castle of the "fairy-tale king."

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

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

The world's only museum devoted to the wonders of fluorescence.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

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

A kaleidoscopic warehouse-maze of handmade neon signs.

Most-visited and most-photographed slot canyon in the American Southwest.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

A crumbling hospital from the 1850s on Roosevelt Island.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

Rippling sand dunes frozen in the Arizona rock.

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

A psychedelic labyrinth on the San Francisco bay.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

A terrific purveyor of natural history objects and curios.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

Former villa and estate of James Deering developed to preserve native tropical forests.

The first custom-designed building to showcase the works of Dale Chihuly is a wonderland of glass and light.