White llama terraces dazzle in Peru's "other Machu Picchu."

An abandoned Incan construction project left behind a mysterious "doorway."

These ruined Incan mausoleum towers still bear carvings of sacred animals on their blocks.

Ancient Peruvian fertility temple or modern money-making hoax? Either way these monoliths still look like penises.

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

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

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

This is why we can't have nice things on the Incan Trail.

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

Museum dedicated to the sacred leaf of the Andes.

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.

Popular tourist destination where witches in dark hats sell dried llama fetuses for good luck.

Bolivia's needle-like rock formations.

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

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

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

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

A fascinating little museum all about the rich history of Peru’s famous plant.

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

Queen of the waterlilies, so big and strong it can support the weight of a human.

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

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

An explosion of natural color known as "the river that ran away from paradise."

The world's largest clay lick, where parrots gather to snack.