High above the old Inca capital of Cusco stand the zigzagging ramparts of Sacsayhuaman, a fortress-temple whose walls are ...

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 ...

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 ...

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 -- ...

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.