A quirky bookstore hidden beneath a sea of whitewashed Greek villas.

A Bronze age settlement on the Greek island of Santorini might have been the inspiration for Plato's Atlantis.

A sharp sculpture made of thousands of pieces of jagged glass.

Legend says this sacred tree was a gift from goddess Athena.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

A 2,000-year-old computer demonstrates remarkable engineering and astronomical precision.

Once a safe haven for locals engaged in blood feuds, this 400-year-old fortified tower is now a museum showing what life was like for those lying in wait within its walls.

A museum dedicated to secret surveillance.

Hundreds of thousands of concrete bunkers crowd Albania long after the fall of Communism.

This exclusive resort has completely covered a tiny Balkan island in a 5-star warren of guest rooms.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

This fortified town dating back to the 1400s is often described as an open-air museum and is a protected National Monument of Bosnia and Herzegovina.

An apparition of Virgin Mary in Herzegovina.

Oriental bazaar in the heart of Sarajevo.

The place where World War I began.

Bridge that died in war and was resurected.

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

A full figure 4th century incorruptible saint lies in a glass coffin in Croatia.

A wunderkammer of gold and silver reliquaries and ancient saintly bones.

Gargoyle head that brings good luck.

A musical instrument played by the sea.

An iconic work of public art that lights up the downtown area.

It's beautiful, it's haunted and its claim to fame is that it's the oldest existing stone arch bridge in Australia.

It's said that visitors can "see" Tasmania inside this cave.