At the height of its dominion, the Inca empire held sway over much of western South America—from the jagged spine of the Peruvian Andes to the sunbaked deserts of northern Chile. To traverse the vast ...

WASHINGTON, DC — Each June in Huinchiri, Peru, four Quechua communities on two sides of a gorge join together to build a bridge out of grass, creating a form of ancient infrastructure that dates back ...

One of history's greatest engineering feats is one you rarely hear of. It's the Inca Road, parts of which still exist today across much of South America. Fortunately, I have Peruvian archaeologist ...

I saw the evidence of Inca engineering skill in the tour that took me to Machu Picchu.Only in hindsight, when I was preparing to write about it, did I begin to fully appreciate the Inca Empire's ...

Hiram Bingham called Machu Picchu “the most important ruin discovered in South America since the Spanish conquest.” Ivan Kashinsky and Karla Gachet The last stretch of road that the emperor of the ...

In 1535, a conquistador who accompanied Pizarro described “one of the greatest constructions that the world has ever seen.” It was the Inca Road—a 24,000-mile-long network that stretches through six ...

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Construction of the Inka Road stands as one of the monumental engineering achievements in history. A network more than 20,000 miles long, crossing mountains and tropical lowlands, rivers and deserts, ...