A medieval wash house where people washed clothes in a river allegedly formed by the tears of a mourning nymph.

"Stairs of the Turks", a chalky white cliff eroded conveniently into stairs, allowing for easy pillaging.

Both the World War II Allied Forces and NATO have used this modern bunker underneath Malta’s capital.

Valletta’s outdoor theatre stands within the ruins of a 19th-century opera house.

These purpose-built WWII air raid shelters, which run half a kilometer under the town of Mellieħa, are among the longest in Malta.

A centuries-old forgotten underworld lies beneath Malta.

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

A memorial to honor those who were killed in a Bastille Day terror attack in Nice.

This saucy statue once caused outrage among locals.

An Orthodox church built by the Royal Family for the Russian community exiled to the French Riviera.

This massive blockhead sculpture hides an entire library.

Lyon, France is home to two remarkably preserved Roman theaters, one dating back to 15 BCE.

The only visible remains of this ancient Greek underground temple is its roof protruding from the earth.

What appears to be an ancient Roman temple is actually a Catholic church.

Not far from the more famous House of Juliet, visitors will find the supposed residence of her lover.

This amazing medieval fortress stands atop a promontory along the famous Cinque Terre.

The bomb-ravaged remains of of a colossal Neptune.

Europe’s oldest natural human mummy.

A lover's walk between hilltop towns, decorated with graffiti love notes.

Pilgrimage site for star-crossed lovers.

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

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

Once a granite mine, this beautiful lake is the perfect place to cliff jump and zipline in Denmark

Northern Europe’s largest castle ruins sit precariously on an island cliffside.