Beach instrument turned bed and breakfast.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

These azure waters were thought to lead to the Mayan Underworld.

The world's most remote airport.

This was once the center of the Birdman cult, and is now a World Heritage Site.

This large round boulder is said to emit spiritual power, but it may just be magnets.

In the Middle Ages, villagers would sound this stone trumpet to boost fertility and coax fish to shore.

The largest stone moai on Rapa Nui.

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.

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

An unexpected desert oasis in South America.

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.

Nazca pilgrimage site covering 370 acres is a popular stop for archeologists and looters.

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.

A record-breaking pool that uses computers to turn ocean water into cleaner, private swimming water.

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.

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

A fascinating little museum all about the rich history of Peru’s famous plant.

This massive Brazilian church is built like an angular, technicolor pyramid left by Mayans from the future.

This Brazilian palace island was once the site of the last grand ball before revolution.

The pedestrian traffic signals in Brazil's teeming metropolis light up with clues to nearby landmarks.

Cars mysteriously roll uphill on this street.