This Victorian marvel of engineering and artistic prowess is nicknamed the "Cathedral of Steam."

Don't be fooled by this fake medieval facade even if it is almost 300 years old.

This overgrown Victorian chapel made of corrugated metal looks utterly out of place.

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

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

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

Ancient cliffs resembling a kilt on Scotland’s second-largest island emit an entrancing sound.

This single-track road rewards brave drivers with stunning Scottish scenery.

A close look reveals that the Scottish monument is just slightly off-kilter.

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

This cemetery overlooking the Benbulben rock formation is the final resting place of one of Ireland's most beloved poets.

Designed as a reminder of one of the darkest moments in Austrian history.

Tijuana's legendary jai alai or "basque ball" palace is now a massive music venue.

Pilgrimage site for star-crossed lovers.

The ruins of this Dutch castle sit atop a labyrinth of once-secret tunnels and passageways, dating back over 900 years.

This museum housed in a former brothel explores the past and present of sex work in Amsterdam.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

Europe's first floating restaurant is home to a hilarious legend.

This exclusive resort has completely covered a tiny Balkan island in a 5-star warren of guest rooms.

A tiny church on a man-made island in the Adriatic.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

According to a local legend, this old castle could only be built after a woman was immured in the walls.

Launched by Napoleon's soldiers more than 200 years ago, a cannonball remains embedded in the tower wall.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.