For centuries, the vanished Inca fortress of Ancocagua existed only in lore. Now, at a mountaintop site in Peru, researchers are zeroing in on a discovery that could reshape what we know of the empire ...
The 14,000-foot-high plain of the Andes, where the Inca civilization flourished five centuries ago, is as barren a land as the world possesses. With its packs of llamas running across the puna, ...