Trujillo, Peru and others. The Chimu culture built its primary settlement at what is known as Chan Chan, which was the capital, having an estimated 100,000 people at its peak. It is the largest pre-Columbian city built of adobe and has been designated a UNESCO World Heritage Site. Its remains are northwest of the current city center. The present Spanish–Peruvian city of Trujillo was founded in an ancestral territory populated by ancient indigenous civilizations. The Spanish founded new cities expressing their culture in what they called the "Viceroyalty of Peru". The Moche civilization flourished in northern Peru with its Huacas del Sol
Metallurgy in pre-Columbian America Mexican artifacts have shown that there might have been a second point of emergence of metallurgy into Mesoamerica there since no known source could be identified. The Aztecs did not initially adopt metal working, even though they had acquired metal objects from other peoples. However, as conquest gained them metal working regions, the technology started to spread. By the time of the Spanish conquest, a bronze-smelting technology seemed to be nascent. Archaeological evidence has not revealed metal smelting or alloying of metals by pre-Columbian native peoples north of the Rio Grande; however, they did use native copper extensively. As widely