Machu Picchu, the 15th-century Inca citadel perched at roughly 2,430 meters in Peru’s Eastern Cordillera, sits directly atop ...

A man attacked the stone with a metal object. Cusco Ministry of Culture An intoxicated man in Cusco, Peru, has defaced a historic Inca artifact known as the 12-angled stone. The carved rock is a piece ...

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 ...

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 ...

Discovering Moray -- Civil engineering planning -- Inca technology -- Hydrology -- Hydraulic engineering -- Construction engineering -- Agriculture -- The Moray agricultural research station theory -- ...

The discovery of a vast Inca tunnel system beneath the historic heart of Cusco has turned a whispered legend into mapped stone. After centuries in which locals spoke of a hidden labyrinth running from ...

Karen Klotz, Michael Sanio, ASCE director of International Alliances and ASCE President-Elect Wayne Klotz peer through a reconstructed doorway in the Incan citadel of Machu Picchu in Southern Peru.

British explorer, author, and independent scholar Peter Frost could be called a 21st-century Hiram Bingham; in 2001 and 2002, he led National Geographic Society-sponsored expeditions into the remote ...