The remains of a sunken military ship wreck visible through clear water.

This stunning, out-of-the-way Croatian monument commemorates a community's uprising against occupying fascist forces.

An ethereal glowing blue ocean cave in Croatia.

A bridge destroyed three times: once as a ruse, then in an actual attack, and finally for the movies.

A wellspring of natural Viagra found in Bosnia.

The remains of the last Bosnian fortress to fall to the Ottomans are still standing.

This surreal memorial/cemetery is a necropolis of crumbling stonework and puzzle-shaped headstones.

This brutalist monument is inscribed with 9921 names of Yugoslav partisans who perished during WWII.

This top-secret nuclear bunker hidden in a Bosnian mountain has been converted to a modern art exhibition space.

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

This cluster of little wooden huts once ground local farmers’ wheat into flour during the days of the Austro-Hungarian Empire.

These warring psychedelic crags commemorate an unsuccessful military operation.

Yugoslavia's biggest underground airport lies in ruins.

One of the world's oldest olive trees, thought to be over 2,000 years old.

A curious cave church carved into the face of a cliff.

On top of a resort town as old as the Bronze Age sits an incredible war memorial statue overlooking the beaches below.

An Albanian monument to the Communism that nearly crushed the country is now a crumbling wreck.

A naturally beautiful, seemingly bottomless deep blue spring.

The elliptical citadel resisted the advance of the mighty Ottomans several times, thanks to the military prowess of the "Dragon of Albania."

A museum dedicated to a Cold War era sausage.

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

Home to a protest movement, a bombing, and a dramatic change in labor history.

Is this the most Portland place ever?

Statue of Lenin, from Cold War era Czechoslovakia, now in a neighborhood of Seattle.