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

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

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

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.

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

These giant mummies are set ominously into a Peruvian cliffside and topped with real human skulls.

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

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

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.

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

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

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