Technology Ra Expedition

1. Aliens in South America? Did Old World visitors before Columbus affect New World technology? 2. Another unexpected face. Bearded ceramic head of pre-Columbian origin from…

Education Andes Mts

1. Andes Mountains Stairsteps to the heavens 2. Andes Mountains The Andes run the entire length of South America, from the humid tropics of the Caribbean to the ice fields…

Documents Andes mts

1. Andes Mountains Stairsteps to the heavens 2. Andes Mountains The Andes run the entire length of South America, from the humid tropics of the Caribbean to the ice fields…