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

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.

Huge stone depressions which may have acted as an Incan agricultural experiment.

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.

A remarkable geological formation resembling a forest made of stone.

One of the world's tallest waterfalls wasn't revealed to the world at large until 2006.

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

Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

A market for witches is hidden within a train station.

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.

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

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

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

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

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

The fighters and conspirators that won independence for Paraguay held secret meetings at this historic house.

These spectacular ruins were built by Spanish padres in the 17th century.

An underexplored, 130-foot tropical waterfall that you will have all to yourself.

The largest market in Guyana, designed and built by the Edge Moor Iron Company of Delaware.

A brick arch is all that remains of this Dutch fort, once a focal point for colonial power struggles in Guyana.

The end appears to be nigh for the world's fourth-longest floating bridge.

A monument to Cuffy, a rebellious enslaved person who became a national hero in Guyana.