Peru: Bandurria may rival Caral as oldest citadel in Americas Bandurria's circular ceremonial center. ? Andina (LIP-jl) -- A team of specialists headed by archaeologist Alejandro Chu has informed that structures found in Bandurria may be as old as structures found in Caral, Peru, deemed as the oldest citadel in the Americas. Located north of Lima, near the city of Huacho, the Bandurria archaeological center has been found to have similar structures as those found in Caral. Among the similarities are a circular plaza made with circular borders, and a ceremonial center made of clay, all in an asymmetrical style....