A series of waterfalls so massive they straddle the border of Argentina and Brazil.

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

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

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

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

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

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

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.

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

In the upscale neighborhood of Miraflores in Lima, a pretty little park is home to dozens of cats.

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

A pretty park of over 1,600 olive trees that grew from just three saplings brought over from Spain.

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

The colonial city's social history is reflected in its fanciful door knockers.

A cozy bookstore and coffee shop in the heart of Cartagena's Old City.

This elegant Colombian fortress was one of the torture headquarters for the Spanish Inquisition.

An inspired museum dedicated to the patron saint of enslaved people, inside the cloisters where he lived and died.

Perched atop the highest hill in Cartagena, this 17th-century convent offers spectacular views of the city.

The same water that fills a luxury resort’s pools feeds these free hot springs in the rainforest.

The first public library in the Americas has more than 45,000 books dating back to the 15th century.

The splendor of this 17th century golden chapel has led it to be called the "eighth wonder of the world."

An indigenous take on European design creates a stunning visual overload.

An Aztec temple, the largest man-made pyramid in the world, sits buried in earth with a Spanish church set on top.

A disquieting Aztec sculpture displays hundreds of stone skulls representing the victims of human sacrifice.