This cavern was used as a hidden hospital and safe house during the Vietnam War.

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

Located off a bustling strip, a silent teahouse employs workers with hearing- or speech-related disabilities.

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

Walk through a clothing store, across a courtyard, and up several flights of stairs for delicious coffee with a side of beautiful views.

This striking landscape in northern Vietnam contains both geological and archaeological wonders.

This spectacular bridge supported by two gigantic hands looks like something out of a fantasy universe.

Vietnam's feral abandoned water park offers access to a post-apocalyptic funscape, now with fewer crocodiles.

World's largest cave was only discovered in 1991, and now offers tours to the public.

Just outside of Jordan's capital lies an ancient castle and intriguing caves dating back to the Copper Age.

This cascade of mineral-rich hot springs and waterfalls is an oasis in the Jordanian desert.

An oasis of shade and color amidst the bustle of the old city.

Known as the "Valley of the Moon," this Jordanian wadi is one of the most amazing desertscapes on Earth.

Concentrated around the Dead Sea, these surprising canyons are filled with coursing water, fish, and even crabs.

Gladiators battle and chariots race daily in the ruins of a once-great Roman city.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.