Crop circles inspired this whimsical garden in Germany.

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

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

A 18th century graveyard and its astonishing cortege of macabre iconography.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

Summer in Scotland begins with a spectacularly wild and colorful event rooted in ancient pagan traditions.

The U.K.'s first underground railway line is now a lively thoroughfare for runners and cyclists.

An industrial relic is now one of Europe's most staggering art spaces.

An effigy of a trapped paratrooper dangles from a Normandy church to commemorate one remarkable D-Day event.

France's Lilliputian park displays over 100 of the country's monuments for visitor perusal.

A natural arch carved by a river gave its name to the so-called "Cave of Forgotten Dreams."

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

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

A crumbling bakery where forced laborers from the nearby concentration camp toiled to feed their fellow prisoners and Nazi soldiers.

Ruins of an aerial tramway that ran for only eight years.

A statue dedicated to the antihero of the Nibelung legend.

It has an American Dream Car exhibit, Europe's largest Formula One collection, and many, many mannequins.

World's largest barrel containing an inn.

This natural "sea of stones" was once used by the Romans as a quarry.

The last Tsar of Russia constructed this private church just so he could attend services when visiting his wife's hometown.

This stone amphitheater was once part of Nazi Germany's plan to promote propaganda.

This 18th-century folly is one of Europe's rare "garden mosques."

Now overgrown, these anti-tank barriers from World War II are sometimes called "dragon's teeth."