A seemingly endless landscape of pure salt stretches far across Bolivia.

A museum dedicated to the German scientist who revealed the significance of the mysterious Peruvian Nazca Lines.

A monument to the conquistador became increasingly controversial in the very city that he founded.

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

The mysterious "Candelabra of the Andes" could represent anything from a god's trident to a hallucinogenic plant.

Situated on a sacred Inca site, this 16th-century cathedral took nearly 100 years to build.

This geometric feat is a testament to the Incas' mesmerizing architectural abilities.

Now containing the bones of the actual conquistador, instead of someone else.

These steeply terraced ruins are a stop along the Inca Trail to Machu Picchu.

The Uros people live on floating reed islands in lake Titicaca.

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

If you’ve ever seen a picture of Machu Picchu, then you’ve seen a picture of Huayna Picchu—you just didn’t realize it.

An unexpected desert oasis in South America.

Plundered and left asunder by grave robbers, this ancient necropolis has been painstakingly pieced back together.

A set of ancient drawings in the desert of Peru that are so massive, many of them can only be fully seen from the sky.

The mortal remains of an estimated 70,000 people lie in the basement of a monastery in Lima, Peru.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

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

A battle between nature and architecture in the Cambodian jungle.

Khmer Rouge's high security prison.

Macabre astrological automaton clock dating to the late 1400s.

This Vietnamese bar doubles as a multistory labyrinth.

A Surreal flight of architectural fancy in Vietnam's Central Highlands.