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

A former French military respite turned jungle tourism hotspot.

An abandoned Cambodian resort that mirrored the downfall of the country as it was happening.

A palace destined to never house a king.

A nightmare for the claustrophobic lies hidden in Southeast Asia.

An ornate tomb pays tribute to one of the most influential and cherished military leaders in Vietnam's history.

This French colonial post office is arguably the grandest in all of Southeast Asia.

Witnesses claim the Virgin Mary statue outside the church once mysteriously shed a single tear.

Meant to be a lavish presidential home, the palace became a symbol of the fall of South Vietnam.

A memorial to the monk who set himself on fire to protest the persecution of Buddhists in Vietnam.

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

The cemetery was built for the Spanish colonial elite, but its most famous residents were all buried in unmarked graves.

Teeming with illegal goods and services, this towering maze of vice is also a popular tourist accommodation.

Take a cruise with no movement but plenty of style in this one-of-a-kind boat mall.

The knock-off oil painting capital of the world.

An out-of-place slice of France, smack in the middle of Shanghai.

An collection of Chinese propaganda posters from 1949 to 1979.

This former textile district now is now a thriving center for contemporary Chinese art.

Rivers of cattle blood gone, a strange Escheresque building remains, the last of its kind.

The once highest point in China blends symbolic design with a kick of adrenaline.

A son-and-daughter meat market, hawked by mom and dad.

A research lab and hands-on museum where visitors can experiment with retro technology.

At one time this small mining village was the highest town in America but now it sits abandoned while the mine churns on.

When ecosystems collide in the arid Southwest.