This historic island prison holds one of the dungeons from the Count of Monte Cristo even though it is a work of fiction.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

This French ghost town from World War II has been left as a memorial to German atrocities during World War II.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

This modest marker near Notre Dame identifies the very center of Paris.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

Where artisans use centuries-old techniques to build traditional Arabian ships.

A powerful cyclone once made one of the world's largest sinkholes completely fill with water.

These gnarly desert trees produce the prized aromatic resin traded along the ancient incense trail.

Some claim these desert ruins are from the legendary "Atlantis of the Sands."

This lonely tomb is all that remains of a once-bustling ancient trade hub visited by Marco Polo.

This bazaar is one of the oldest in the Arabian world.

A sinkhole and now a swimming hole, too, full of dazzling turquoise water.

Feed it cash, get your very own gold bar.

A Sri Lankan tea factory's ironic take on the Los Angeles landmark.

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

A sprawling nature preserve harbors the world's only living dragons.

The inky volcanic sand leads to reefs teeming with aquatic life waiting to be discovered by snorkelers and divers.

Isolated atop this Balinese sea crag is a lovely Hindu temple that is said to be guarded by sea snakes.

The name of this ancient Indonesian temple translates as "Elephant Cave" but it could be more accurately called "The Hellmouth."

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

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

In this historic region, homes and churches are carved into ancient volcanic rock formations.

A gorgeous, Gaudí-esque stairway constructed in the city of Istanbul by a prominent Jewish family.