After an epic flood washed away its enslavers, this city has been part ghost town, part cultural wildcard for the past three centuries.

Did Inca children also slide down these smooth rocky slopes above Cusco?

A backdoor to Machu Picchu that only the most foolhardy infiltrator would attempt to breach.

This Peruvian canyon is filled with geometric salt pools that have been being harvested since the Incan empire.

An unexpected desert oasis in South America.

Nazca pilgrimage site covering 370 acres is a popular stop for archeologists and looters.

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

A market for witches is hidden within a train station.

A remarkable geological formation resembling a forest made of stone.

This scalding hot river was thought to be a myth until one geoscientist made it his quest to study the mystical waters.

A remote candy-striped mountain in the Peruvian Andes straight out of the pages of Dr. Seuss.

Keshwa chaca, among the last handwoven Incan bridges, crosses Apurimac Canyon in Peru.

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

Mountain of unimaginable riches that bankrolled the Spanish Empire, complete with its own underworld god.

The soaring gondola lines form the longest aerial cable car system in the world.

The celebrity luchadores of La Paz are tough ladies in traditional petticoats and braids.

In La Paz's huge, city-sized cemetery, the deceased are stored in rows of apartment-like buildings.

The world’s highest ski resort was deserted after an 18,000-year-old glacier melted away.

Death road of Bolivia.

Largest site of dinosaur footprints ever found includes more than 5,000 tracks.

This red lake 4,000 meters above sea level is home to rare flamingos.

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

On the outskirts of a desert trading village high on the Andean plain, steel giants have been destroyed by salt winds.