Although they are not ruins, the Salineras of Maras were one of the most impressive ancient Incan sites. Built and maintained by the in the 1500s, they are still in use today. Citizens of the nearby city of Maras are given a certain number of plots, which they work and are able to keep the profits from: a type of Cooperative. An elaborate aqueduct system fills the pans with water from the nearby river. As evaporation takes place, the salt begins to crystallize. Dry salt is packaged and sold. Makes me wanna shoop.