Chan Chan in South America

I've been looking into assorted ancient sites as part of my research on the novel I am working on, places such as Chan Chan. Located 5km east of Trujila, in the Peruvian region of La Libertad, Chan Chan is the largest Pre-Columbian city in South America. I've just started looking into Chan Chan, but the little I have found out about it so far is fascinating and I am considering it as a basis for a ruined city that I have in m novel.