It was once nicknamed "the most bombed hotel in Europe."

The atmospheric road was never meant to be so creepy.

It is said a heartbroken man visited the gap every day to stare blankly out at the sea.

This Italian-style temple replica has been threatening to fall off the Irish coast for hundreds of years.

A museum marks and documents the site of the Titanic's launch.

The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

A perfectly circular lake is formed by the crater of an ancient underwater volcano.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

This tri-part waterfall is a little bit of fairytale beauty in the heart of Luxembourg's Little Switzerland.

Once the local rulers had gone these enchanting ruins housed common folk in an almost real life fairy tale.

This noble mash-up in eastern Luxembourg is part Medieval, part Renaissance, all castle.

Hidden within a Netherlands crater is a stone bed that lets those who lie in it see the sky as a curved surface.

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

This abandoned five-star hotel is now a five-star urban exploration destination.

This fairy-tale, neo-Gothic church in the Azores is a world of magical realism.

Part modern art project, part traditional chapel, this see-through church is only substantial from the right angle.

Sculpture designed by Turkish artist and professor Mehmet Ali Uysal.

This giant urban staircase was built to keep the city's brave fighting men from getting waylaid in the red light district.

A once-magnificent collegiate church is falling into ruin.

This ghost town in Belgium will lose its street art when it ceases to exist.

A magical and peaceful ruined Cistercian abbey in what is now southern Belgium.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

This narrow Ghent alleyway is an officially sanctioned street art tunnel.

Repository for more than 22 million pickled specimens.