Sculpture garden of religious statues made it through Soviet rule.

Launch site for nuclear war against Western Europe.

A gravity-defying "devil's bridge" that has a surprising architectural feature for its stability.

A well-preserved medieval village nested on a rocky outcrop and surrounded by a network of cliffs, natural bridges and canyons.

Historic medieval fortified city in southwest France.

In one of the smallest countries in the world stands an original Salvador Dalí sculpture.

Beneath the city of Lourdes, France is a massive, concrete church.

Bordered by forest on three sides and the ocean on the other, the Great Dune of Pilat is the highest sand dune in Europe.

The world's largest reflecting pool is just two centimeters deep.

One of the most powerful religious centers in the Middle Ages, dubbed the founder of Western monasticism.

Vibrant street art created with mixed media.

This amazing example of Valencian Art Nouveau looks more like a cathedral than a public market.

Of the many chalices in the running for the Holy Grail, this one in Valencia Cathedral sure looks the part.

Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

This strange bovine gargoyle is said to have been put in as a passive aggressive form of revenge.

The best preserved Paleochristian basilica in Rome hides a number of oddities and secrets.

Rome's ancient Etruscan rival, now a park full of ruins.

This quaint Italian town keeps losing ground as the sides of its plateau slowly erode.

Bizarrely-painted church designed by a controversial artist.

Austria's very first and only nuclear power station was completed but never used.

Archduke Ferdinand II's collection of rare objects is considered one of the oldest museums in the world.

Fantastic stories on a miniature railroad.

Austria's ultra-modern art museum looks like Cthulhu's giant alien heart.

This series of underground chambers contains Europe's largest subterranean lake that is slowly drained each day.