One of the most spectacular canyons in the world.

Morocco's Argania trees are infested with nut-hungry goats.

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

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

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

Hidden in a secluded Greek cove is a pristine beach marred only by the rusting smuggler's hulk stranded on its shores.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

An ethereal glowing blue ocean cave in Croatia.

A submerged village appears when dam levels drop.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

This lovely little bridge hidden in a Switzerland gorge is essentially a fairytale.

This amazing pedestrian suspension bridge in the Swiss Alps would give Indiana Jones nightmares.

The tallest outdoor elevator in Europe rockets passengers on a dizzyingly precarious ride to the top of a mountain.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

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

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

These fantastically named natural pools look like something out of a Scottish myth.

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

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

Bring your hiking shoes, wool socks, and thermal underwear for a stay in these cozy forest huts.

From Coke II to Google Glass, this exhibit features some of the most spectacular commercial flops.

According to the locals, the sands of this secluded Norway beach are infused with gemstone particles.

The burning of this 12th-century church kicked off a campaign of Norwegian Black Metal terror.

A stunning silver lining to global warming's gloomy cloud.