This spectacular dome managed to survive after being bombed in World War II, in an event known as the "Miracle of Mosta."

The floor of this spectacular Baroque sanctuary is covered in memento mori.

Enigmatic tombs and cave dwellings on the outskirts of a rural village.

This unique building in the main square stands out among the city's typically Baroque architecture.

A German shoemaker-turned-folk-hero whose impersonation of a Prussian military officer earned international notoriety.

The official motto of Luxembourg reminds passersby of the Luxembourgish commitment to their national identity and sovereignty.

Healing waters from a holy well, previously used by locals for doing laundry.

Statues of a fire-breather, a clown, and a whole performing troupe celebrate Luxembourg's creative side.

Some believe that the artist behind this whimsical statue inserted his own likeness as a way to discreetly flip the bird.

This magenta statue commemorates the legendary marriage between a mermaid and the city's founder.

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

Over the centuries, this island paradise has done it all, from providing monks with ecclesiastical respite to sheltering an exiled Leon Trotsky.

Remnants of successive wars and Muslim colonialism in the 11th century.

One of the newest mosques in a city filled with thousands.

Natural rock formation, or biblical artifact that saved Earth's wildlife two by two?

Seven early Christians were sealed into a cave where legend has it they slept unharmed for centuries.

Ancient serpentine sacrifice holder that has stood the test of time.

Standing proud atop a Turkish bluff, this Ottoman palace has retained its grandeur despite being abandoned for centuries.

The most metal church of all time was built in record time because of an international, pious pissing contest.

While not Turkey's deepest underground city, this subterranean redoubt is the largest.

Step back in time and witness the fall of Constantinople.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

This glacier interpretation center houses the world’s only bar made completely from glacial ice.

The inspiration for the Patagonia Clothing logo, Cerro Fitz Roy turns pink at sunrise.