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

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

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?

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

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

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

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.

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

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

This unimaginably large pile of sand near Nazca is one of the tallest dunes in the world.

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

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

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

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

With nearly double the depth of the Grand Canyon, this Peruvian canyon is one of the deepest in the world.

Death rituals and sacrifice inside a Peruvian megalith.

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

Lima’s Museum of Anthropology is lined with thousands of elongated human craniums.

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.

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.

Plundered and left asunder by grave robbers, this ancient necropolis has been painstakingly pieced back together.