A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

One man's remarkable private collection of art from around the world.

The world's oldest bookshop still in operation.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

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

Huge stone depressions which may have acted as an Incan agricultural experiment.

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

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

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.

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

A stunning Catholic cathedral built by a curve-loving communist in Brazil’s newly created capital.

Solitary monument dedicated to the beauty of nature.

This Brazilian town built by Freemasons is full of colonial Masonic architecture and symbolic imagery.

This majestic building, where Brazil's coffee brokers once bought and sold beans, now houses a coffee museum.

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

Striking ruins of a mansion that stood center stage in one of modern Brazil's most puzzling crimes.

The bookstore with bookshelves built into unlikely places.

This park feels like a lush little jungle full of wildlife nestled within São Paulo.

This singular art museum in São Paulo is unique inside and out.

The building that once housed the dictator's secret police is now a museum that documents the history of an oppressive regime and those who fought against it.