A Christian monastery stands on what was once a holy Incan temple.

Mystic Incan rock piles three miles above sea level.

This geometric feat is a testament to the Incas' mesmerizing architectural abilities.

Visiting dignitaries and Hollywood stars once stayed at this 1920s hotel, alongside ghosts that are said to haunt its corridors.

This high-Andean reserve protects the graceful vicuña that was nearly hunted to extinction for its precious wool.

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

An Inca spa, military outpost or maybe… both?

Situated on a sacred Inca site, this 16th-century cathedral took nearly 100 years to build.

It took 82 years and four different plaques to finally get the story right.

The large collection of pre-Columbian pottery might make you blush.

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

A painting in the historic Cathedral Basilica depicts Jesus and his disciples dining on a traditional Peruvian menu.

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

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

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.

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.

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.

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

The outside of this exposed Moche pyramid is covered with striking colorful adobe friezes.