In Peru, near the north coast, in Trujillo, the capital of the department of La Libertad, the pre-Columbian city Chan Chan shows the architectural traces of the great adobe buildings of the Chimú: a pre-Inca culture that was developed in that American region after the decay of the Huari empire between the years 1,000 and 1,200.
Among the most significant archaeological finds of recent times are wave reliefs and squares more than eight hundred years old found in the walled complex of Utzh An, formerly the Palacio Gran Chimú.
Declared a World Heritage Site by Unesco in 1986, Chan Chan is the largest adobe-built city in America and the second in the world. It is formed by nine walled citadels, designed with streets and avenues, deposits, water wells, workshops, palaces for the nobility and neighborhoods for workers. The archaeological site covers an area of approximately twenty square kilometers.