A fifth-century temple improbably built into the side of a cliff.

Over 2,000 ancient temples dot the Myanmar landscape at the site of this famed archaeological site.

A meditative walk up 353 stairs leads to a majestic white Buddha overlooking Pai.

This bridge made famous in a novel and on-screen wasn't actually built over the river Kwai.

Bizarre dirt trail winds a narrow path above the tree line.

Where an entire elephant skeleton, a snakeskin table runner, and thousands of animal remains become art.

At the right time of day, sunlight floods through the roof of this cave and illuminates the small pavilion hidden within.

A white Buddhist temple with a golden restroom.

A secluded, little-known temple hidden amid the dense jungle.

Arguing within this idyllic, circular volcanic lake is forbidden.

Khmer Rouge's high security prison.

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

This impressive clifftop temple was once at the center of an international custody dispute.

A former French military respite turned jungle tourism hotspot.

One of Vietnam's most iconic landmarks was built by Japanese traders and is now in danger of sinking.

Vietnam's largest Buddha statue depicts a female sage.

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

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

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

This whimsically named Vietnamese stream is closer to a walkway than a waterway.

The lavish temple of the Cao Dai religion that includes Buddha, Mohammed, Joan of Arc, and Victor Hugo.

The notorious "Hanoi Hilton" where Vietnamese colonial subjects and later American POWs, including John McCain, were imprisoned.

Ho Chi Minh's perfectly preserved body has been on display here since 1975.

A nightmare for the claustrophobic lies hidden in Southeast Asia.