Light still pours into the ruins of this ancient Islamic observatory.

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

One of the most ethnically diverse spots on the planet.

A dictator's gold statue once rotated to face the sun on a 75-meter high marble tower.

A huge monument to a bizarre book written by Turkmenistan’s longstanding dictator.

Sumptous memorial to a controversial independence.

A small memorial to a deadly night in Serbia that shook the world before it was swept under the rug.

A towering spire in the fortress of Kalemegdan honors the victorious armies of Serbia during their struggles against the Ottoman Empire.

Destroyed Serbian army headquarters sits half crumbled in a largely revitalized Belgrade.

Nikola Tesla's ashes are held in a golden sphere, surrounded by his works.

This ominous Albanian fortress houses tanks and downed planes as a reminder of their victories over Western imperialism.

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

What happens when you cross a mayor and a painter?

To gaze upon the visage of Sri Lanka's biggest Buddha, one must first pass through the Tunnel of Hell.

Once thought to be the Garden of Eden it holds a holy footprint claimed to belong to Adam, Buddha and Shiva.

This elaborate temple was built around one of the Buddha's teeth.

An ancient stone fortress considered by many to be the eighth wonder of the world.

Hundreds of Buddhas in a re-discovered Indonesian temple.

This tiny lake temple dedicated to a water goddess seems to float on the surface.

Hindu temple of the dead home to hundreds of long-tailed macaques.

These Nubian pyramids are strange and unique, even by pyramid standards.

Ancient artists in the middle of nowhere.

A seemingly desolate park that belongs to two countries actually supports all kinds of wildlife.

This "dead marsh" sits among the largest sand dunes in the world, a forest frozen in time.