This spot along the 23.5 degree north parallel marks the northern boundary of the tropics.

This is why we can't have nice things on the Incan Trail.

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

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

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

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.

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.

An unexpected desert oasis in South America.

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

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

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

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

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

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

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

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

The little bear in the "funny kind of hat" has made his way from London back to Peru.

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

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

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

An enigmatic monument to the Irish revolutionary who plotted an uprising against British rule.

This Neolithic passage tomb forms part of a World Heritage Site.