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

Space-age monument to an early 20th-century uprising.

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

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

A tiny church on a man-made island in the Adriatic.

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.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

These Stalin-era industrial 'death traps' hang lifeless above the city

Fortified homes of highland warriors that are still in use today.

Small church on top of a huge rock column.

Gladiators battle and chariots race daily in the ruins of a once-great Roman city.

Gorgeous cave resemble a winter wonderland.

More than half of this Indian palace is drowned but it looks all the more spectacular for it.

What was once the base for Russia's first nature reserve is now a ghost town, right on the shore of Lake Baikal.

Intricate wood carvings on an island in Siberia.

This ancient village and its adjoining cemetery have a beautiful history of death and remembrance.

The Avenue of Mausolea is a series of grand palatial tombs.

This famous city eluded concrete detection until the early 2000's.

A fiery crater has been burning in the Karakum Desert since 1971.

An enormous concrete structure built over a nuclear crater.

Palace where the nearly un-killable Rasputin was murdered.

Nightmarish example of the unintended consequences of weapons testing.

A decommissioned submarine base makes a great space for graffiti art.