Geography of Peru of 1.57%. Lima forms part of the Largest cities in the Americas, and holds 31.7% of the country's population. The dense concentration of the population size of Peru is 25 people/km² or 57/mi². Lima is a pull factor that draws millions of Peruvians from the suburbs to the capital. This urban inland migration is the result of sprawling around Lima. These sprawling places are known as “Pueblos Jóvenes”. The young towns and Lima make up the metropolitan area that extend 125 miles. The urban growth brings issues to the metropolitan area and the environment. Lima is the most polluted city
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