Sacsayhuamán’s massive zigzag walls are built from megalithic stones fitted with a precision that does not match known Inca ...

MACHU PICCHU, Peru — Darwin Camacho, tour guide and denizen of this place for a quarter of a century, gestures toward gaps in the famously precise stonework of an Inca wall. “The stones are separating ...

Question: I've heard that there are stone walls on Easter Island that look very much like the Inca stone walls. Have you seen them, and do you know if there is any evidence on Easter Island about how ...

NOVA: What was your first impression of Machu Picchu? Ken Wright: When I arrived in 1994, my first visit ever, I was blown away by the view of Machu Picchu itself and also by the surrounding territory ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Popular Science’s new series, The Builders, takes you behind the ...

La Raya Pass, at 14,172 feet above sea level, was the highest point on my small group's drive from the shores of Lake Titicaca in southern Peru to Cuzco, the former Inca capital. The site offers ...

Cuzco, I decided, had to be the gayest city in South America. Everywhere I turned were rainbow flags. They fluttered in front of banks, in hotel lobbies, in restaurants, atop government buildings.

Who doesn’t dream of visiting Machu Picchu? I finally got my chance after hitching a ride on National Geographic’s Around-the-World-by-Private-Jet expedition last week. And while the Inca village in ...