Formerly Yugoslavia's "forbidden island," this sleepy little city still holds the abandoned remains of military strongholds.

Croatia's towering concrete blossom grows from the site of a World War II concentration camp.

A quirky little wax museum is home to some of the most famous Serbians in history.

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

Explore a traditional Albanian dwelling that pays tribute to the region's rich history.

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

Christianity and Islam have clashed, yet here a Serbian Orthodox church and a mosque stand together.

The bizarre rocks of Đavolja Varoš are the result of natural erosion.

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

Curious carved stones and bird-like wings are a symbol of Serbian resilience and freedom on the site of a WWII massacre.

This spaceship-like Serbian monument reaches for the stars in celebration of the fallen fighters of fascism.

This former monastery is still a revered religious site.

The interior of this Serbian royal family's mausoleum is covered with exquisite mosaics.

Abstract monuments express sorrow and resilience at the site of a horrific massacre in Nazi-occupied Serbia.

A sculpture of a blood drop designed to honor those that have donated the precious liquid.

This spa park features an open-air museum of abstract marble sculptures.

Serbia's master of striking memorials erected a forgotten, hidden gem in the hills outside a tiny village.

Two distorted Romanesque columns hold aloft a mine cart in honor of laborers who died during WWII.

When Croatia became independent of Yugoslavia, the splintering governments left behind these concrete tunnels.

According to a local legend, this old castle could only be built after a woman was immured in the walls.

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

The ruins of this medieval castle on a foggy hill tell the story of a once-mighty empire.

This fresco-covered medieval monastery hangs from the side of a steep cliff.

The oldest church in Serbia was also the ecclesiastical seat of the region during the Middle Ages.