A fake Transylvanian castle houses a cathedral of antlers.

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

Monasteries on rock pillars, once accessible only by frayed ropes.

Bridge that died in war and was resurected.

A beautiful mountaintop mausoleum devoted to a Montenegrin icon can't seem to make everyone happy.

Former military fort and site of untold horrors during WWII, this island may become the Adriatic's next luxury resort.

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

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

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

Beautifully carved tombstones fill this unmarked graveyard, uniquely situated near the village's famous stone wine cellars.

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

Legends of treasure and spirits flow from this this fairy tale-like oasis.

For over 40 years, this quaint little house has teetered on a rock in the middle of a river.

A sinuous path among steep cliffs creates a stunning sight in southwestern Serbia.

This 14th century castle withstood years of battle but is now sliding off the hills into the Danube.