Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

Northern Ireland's Brobdingnagian stepping stones.

A strange rock with a sinister reputation lurks within the crimson waters of this Scottish glen.

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

The atmospheric road was never meant to be so creepy.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

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

Eighty million natural history specimens call this gargantuan museum home.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

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

We heard you like volcanoes so we put a volcano in your volcano so you can die for sure...

Coast along one of Japan’s mountain railways for coveted views of magnificent hydrangeas.

The oldest hotel in the world has been operated by the same family for over 1,300 years, even catering to samurai.

A beautiful, dense forest in the shadow of Mount Fuji, with a tragic reputation.

Hot springs monkey spa in the middle of Hell's Valley.

An exquisite tunnel of cascading flowers.

A preposterously luxurious hotel with gold-plated iPads, Rolls Royce chauffeurs, and a staff that trains by watching "Downton Abbey."

An abandoned desert hamlet swallowed up by sand.

This artificial archipelago was supposed to resemble a map of the world.

Billed as the "largest natural flower garden in the world" this Middle Eastern show field has little competition at 45 million flowers.

Once a major stop on the Hejaz Railway, this desert station (complete with steam locomotive) has been abandoned for decades.

An unfinished tomb carved into a giant boulder in the Arabian Desert.

A giant scale model giving a sneak peek at what urban planners see for Shanghai by 2020.

Hundreds of caves filled with thousands of centuries-old statues and murals.