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…

Travel South American Geography

1. South American Geography Supplement to National Geographic video 2. South America Fourth largest continent 3. Andes Mountains The Andes run the entire length of South…

Education South america physical

1. South American Geography Supplement to National Geographic video 2. South America Fourth largest continent 3. Andes Mountains The Andes run the entire length of South…