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.

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.

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

These small sculptures pay homage to the lovable star of an iconic Argentine comic strip.

This beautiful fountain was sculpted by a female artist who was ahead of her time.

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

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

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

This attraction is devoted to the wonders of steam power and features a replica of one of its most public disasters.

Part of one of the largest flooded cavities on the planet, and littered with prehistoric animal bones.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

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

A jungle in the heart of São Paulo reminds visitors of what Brazil looked like untouched by man.