Pucara del Cerro La Muralla
Pucará de Cerro La Muralla (Pucara of Wall's Hill) is an Inca Pucara (fortress) in Chile. It is located on a strategic mountain top, five km to the south of San Vicente de Tagua Tagua, near the dry lagoon (Laguna de Tagua Tagua).
Source: Wikipedia — Pucara del Cerro La Muralla (CC BY-SA 4.0)