en Cuevana 3. The Chachapoya people, who perished centuries ago, left behind hidden necropolises in the headwaters of the Amazon and Kuelap, the largest fortress in the Americas. After extensive research, a German professor now believes he has solved the mystery of the Chachapoya's origins. Similarities between religious symbols and images of gods as well as identical stone slingshots and holes in the skullcaps lead him to believe that survivors from destroyed Carthage reached Peru together with Celtic warriors from the Mediterranean region more than 2,000 years ago.