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.

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

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

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

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

As one of the world's largest hydroelectric dams this plant took two countries to get built.

An unlikely neo-Gothic castle in the Paraguayan countryside.

An epic sculpture depicting a wagon and straining oxen.

This historic stadium was built to host the first-ever FIFA World Cup.

Where sweethearts leave their love locks in the Uruguayan capital.

The design of the Palacio Salvo has been described as "a lighthouse on top of a building."

This small island off the coast of Uruguay hosts the largest colony of sea lions and fur seals in the southern hemisphere.

Abandoned bull fighting ring, slowly falling apart in Uruguay.

This bright yellow bridge is a true engineering feat.

The hellish conditions of this abandoned mine that snakes beneath the Pacific Ocean gave it its diabolic name.

The imposing piece of artwork is a celebration of Pan-American fraternity.

Full-scale dinosaurs dominate the forested park in the middle of Chile’s second city.

Formerly a brutal Nazi colony, this Chilean village was remade as a (controversial) German-themed tourist trap.

Trash-filled shrines to an unofficial saint known for her endless breast milk dot the highways of Argentina.

What was once a unique system of urban elevators is turning into a mechanical ruin.

Buying your medicine at this particular pharmacy is like taking a trip back in time.

Pivotal home of Nobel Prize winner Pablo Neruda.