Gobekli-tepe, Turkey. Dated at eleven thousand six hundred years old but incredibly sophisticated. Surprising discoveries here include a perfectly aligned north to south structure, requiring advanced astronomy. It is thought that this is a deliberately built time capsule as it was intentionally sealed. Ground penetrating radar reveals that only a small portion of the site has been revealed so far.
Chan Chan ruins, Peru. The largest Pre-Columbian city in South America. Chan Chan was constructed by the Chimor (the kingdom of the Chimú), a late intermediate period civilization which grew out of the remnants of the Moche civilization. The adobe city of Chan Chan, the largest in the world, was built around AD 850 and lasted until its conquest by the Inca Empire in AD 1470. It was the imperial capital where 30,000 people lived.