These tombs were built into the side of a mountain so that ancient angels could reach the dead.

This abandoned Slovenian military barracks has become a punky-political art squat.

An underground city of salt.

The site of a concentration camp where inmates were made to take part in one of the largest counterfeiting operations in history is now hauntingly empty.

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

A fascinating insight into daily life in the Eastern Bloc.

A whimsical bridge adorned with decorative dragons.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

A marvel of Byzantine engineering under the streets of Istanbul.

There's a mini version of Iguazu Falls hidden in the Balkans, and it's got a rope swing.

An apparition of Virgin Mary in Herzegovina.

Bridge that died in war and was resurected.

Oriental bazaar in the heart of Sarajevo.

This museum preserves the hand-dug tunnel that kept Sarajevo afloat during the Serbian siege.

A number of craters left by fatal mortar strikes have been filled with red resin to remember those lost during the Siege of Sarajevo.

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

A Bulgarian monument to Russia's role in World War II is constantly being painted in pop culture protest.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

The patron saint of spinsters grasps a container of dried blood.

The chefs at El Diablo use heat generated by an active volcano to cook the food.

Visit a surreal landscape so otherworldly NASA actually used it to train the Apollo 17 crew.

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

Astonishing rock formations dot the Brimham Moor landscape.

WWII artifacts, including the building itself.