After visiting hours, this picturesque waterfall is essentially turned "off" to be used for hydroelectric power.

Destruction from Armenia's 1988 earthquake inspired an artist's sculptures of scrap metal.

The most visited pilgrimage site in Armenia once held a saint in a pit for 13 years.

This Armenian monastery was carved out of cliffs and named after the spear used to stab Jesus.

A geological oddity topped with a 2,000-year-old pagan temple.

The same water that fills a luxury resort’s pools feeds these free hot springs in the rainforest.

A nightmare for the claustrophobic lies hidden in Southeast Asia.

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

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

Ha Long Bay's "Cave of Surprises" houses a popular phallic rock formation.

A French-Colonial era collection of taxidermy and wet specimens, secreted away in the National University of Hanoi.

Monument to a brutal, ineffectual US bombing campaign and a sobering reminder of the human cost of the Vietnam War.

This Vietnamese hell cave lets visitors take a walk through a devilish underworld full of demons.

Home of the unusual art of water puppetry, one of Vietnam's oldest curiosities.

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

The spot where the two men ate together now stands enclosed in glass.

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

One of the oldest temples in Ho Chi Minh City, dedicated to a deified Chinese military leader.

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

Vietnam's largest Buddha statue depicts a female sage.

A gift from the Soviet Union in the 1980s, this is the only statue of the Soviet dictator in Southeast Asia.

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

Nearly three tons of weapons from the Vietnam War still remain in this small, hidden museum.

Under Hanoi’s medieval citadel sits a secret military headquarters from the final years of the Vietnam War.