Paramonga was an important city constructe at the border of the Kingdom of Chimor (Period Intermediate late, 1200 to 1400 d. C.), whose capital was the metropolis of Chan Chan. It is located on the Fortaleza river, close to the town of Pativilca to the north of Lima. It is said that Paramonga was an important religious building, similar to Pachacamac. It is named after the nearby modern town of Paramonga, as its original name is unknown. Paramonga is often called a fortress due to its staggered pyramid of 4 levels of enormous proportions constructed on a hill, which resembles somewhat a European medieval castle.