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

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

An Inca spa, military outpost or maybe… both?

The Incas turned this ancient Wari aqueduct into an imposing defensive gate.

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

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.

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

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

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

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

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

Death rituals and sacrifice inside a Peruvian megalith.

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

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

In this mine all the gold you can carry may not be as sweet of a deal as it sounds.

On this tiny spot of land in the middle of Lake Titicaca the only ones who do the knitting are the men.

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

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

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

An outdoor gallery of sculptures chiseled from a unique stone.

This 16th-century monastery was founded to cloister the daughters of wealthy local families.

A museum dedicated to the German scientist who revealed the significance of the mysterious Peruvian Nazca Lines.

This metal tower in the desert provides views of a handful of Nazca geoglyphs.