Pre-Incan aqueduct amidst a stone forest in Peru.

The depictions of slaughter are surprisingly detailed at this mysterious ancient site.

A paradisical gorge with rapids, waterfalls, and wildlife whose raw beauty is the stuff of CGI movies.

The shockingly unspoiled Peruvian tomb of the Lord of Sipan was once guarded by a footless warrior.

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

Hundreds of mummies in a silent room, some with eerily pained expressions preserved on their faces.

This remarkably well-preserved Incan city managed to survive the conquistadores.

This Peruvian bone silo lined with hanging human skeletons and hundreds of skulls is topped with a remarkable Michelangelo replica.

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

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

This stone complex marks the urban center of a lost civilization.

The highest tropical mountain range in the world is in Central Peru, home to a vast array of exotic and quirky plants and animals.

An Archaeological Wonder of Peru, and the largest stone ruin site in the New World.

These delicate ruins need more tourists to keep them from fading away.

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

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

A mysterious pre-Incan ruin believed to have miraculous healing powers.

A jungle cave in Peru of unknown depths, otherworldly sounds, and strange nocturnal birds that navigate by echolocation.

The remains of what was the most important religious complex in coastal Peru for over a millennium.

Tucked behind the Institute of Neurological Science down a decrepit street resides the largest display of human brains in Latin America.

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

The world's fifth tallest waterfall is a spectacular silver chute of water that cuts through the cloud forest in northern Peru.

Death rituals and sacrifice inside a Peruvian megalith.

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