A nightmare for the claustrophobic lies hidden in Southeast Asia.

This historic spot was where America's involvement in the Vietnam War officially came to an end.

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

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

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

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

One of the biggest markets in Asia, under one of the continent's largest domes.

Originally a meeting place for foreign correspondents and war reporters, the FCC remains an atmospheric spot for sunset drinks in Phnom Penh.

The largest mosque in Cambodia was built to unite the country's Muslim community but soon sparked division and controversy instead.

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

Khmer Rouge's high security prison.

The abandoned airport is a strangely intact remnant of Cambodia's brutal Khmer Rouge regime.

Though it was originally dedicated to the Hindu god Shiva, Baphuon was converted to a Buddhist temple in the 15th century, complete with a massive hidden statue.

This Cambodian riverbed is covered in ancient Hindu carvings both above and below the waters.

This naval gun is fired every day at noon, an odd timekeeping tradition the origin of which is local legend.

Remnants of the most densely packed city in world history, that thrived on anarchy for 30 years.

A pair of trees near a Hong Kong shrine are said to grant wishes, but only the ones they hold on to.

Why walk on this historical site when you can zoom down instead?

The most famous location in China was home to whole dynasties worth of imperial rulers.

This smaller cousin of the Forbidden City has gone from ancestral sacrifice to tourist's whispers.

This working replica of the 'Friends' coffee shop is more accurate to the show than the set itself.

Where the Great Wall of China meets the sea.

This road earned its macabre nickname after hundreds of Iraqi troops died along it in 1991.

A boiling wellspring flowing with natural gas burns in a continual blaze.