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

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

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.

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

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

Ain't no party like a ghost town party.

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

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

A colorful Peruvian city of the dead.

White llama terraces dazzle in Peru's "other Machu Picchu."

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

Death rituals and sacrifice inside a Peruvian megalith.

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

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

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

An unexpected desert oasis in South America.

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

This scalding hot river was thought to be a myth until one geoscientist made it his quest to study the mystical waters.

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

A set of ancient drawings in the desert of Peru that are so massive, many of them can only be fully seen from the sky.

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

A speakeasy takes on Chicago's drinking culture.

This memorial plaque remembers a strangely shallow maritime disaster known as "Chicago's Titanic."