A gruesome memorial for those lost in this area during the Khmer Rouge genocide.

5,000 skulls in memorial to those killed by the Khmer Rouge.

A battle between nature and architecture in the Cambodian jungle.

A quick and simple solution to Cambodia's train woes.

Limestone caves in the Cambodian countryside, once the site of genocide, now a place of peaceful beauty.

Abandoned soda factory on a Cambodian roadside in a state of beautiful decay.

Artifacts and memories from the Vietnam war, located in a place that experienced it first hand.

A Surreal flight of architectural fancy in Vietnam's Central Highlands.

Fowl, love and death in Vietnam.

This bridge is embedded with a giant steel dragon that breathes fire from its mouth.

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.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

The world's largest wooden structure.

The final resting place of the great navigator, or maybe his brother.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

Single runway interrupted by a busy road that cuts across its middle.

Founded as a refugee camp, now a popular tourist spot.

Traditional 11th-century outdoor tannery.

Thousands of narrow alleyways in an ancient medieval city make up what's believed to be the world's largest car-free urban zone.

The other side is actually green.

An awe-inspiring mosque in Morocco with one of the tallest minarets in the world.

One of the most spectacular canyons in the world.

World's largest film studio, where visitors tour the decaying sets that litter the harsh desert environment.