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.

Machu Picchu is often presented as a single Inca masterpiece, but the architecture tells a more complicated story. Across the terraces and retaining walls, there are signs of massive older foundations ...

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 ...

LIMA, Peru — Peruvian officials have announced a plan to construct an elevator to access the famed "lost city" of the Incas, Machu Picchu, in an effort to bolster tourism to the No. 1 visited site in ...

Part 2 of Engineering the Inka Empire: A Symposium on Sustainability and Ancient Technologies Kenneth Wright and Ruth Wright examine the Inka road system in the vicinity of Machu Picchu. Here, the ...