This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

Nine limestone rock stacks on Australia's "Shipwreck Coast."

The labyrinthine storm tunnels beneath the city of Melbourne are ruled by a band of urban explorers.

Australia's largest traditional hedge maze features a Great Gnome Hunt.

Australian Lake set aglow by Noctiluca Scintillans.

Once the path of a railway tunnel, now home to thousands of glowing insects.

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

This "floating island" plateau sits 7,671 feet above the forest floor.

These phallic stone spires once served as Tolkien's Paths of the Dead.

Anyone wanting to know what a dwarven mine sounds like need only visit the tunnels of this New Zealand artillery compound.

Edoras, capital city of Rohan in Lord of the Rings, once sat atop this isolated New Zealand mountain.

Some islands... they come, they go, especially on Lake Travis.

Decades of discarded bottle caps line this alleyway, a fixture of Texas A&M.

Decaying military base deactivated in the 70s is now visited by urban explorers and military enthusiasts.

A modernist landscape of water and sci-fi concrete.

This crumbling UFO is one of only a few remaining "moveable ski chalets" of its kind.

A Texas-sized particle collider that was abandoned due to its Texas-sized budget.

A 140-year-old castle with underground caves hidden in San Francisco.

Turning night into day in Victorian-era Austin to thwart a serial killer.