archaeological center of the ventanillas de otuzco in cajamarca-peru

archaeological center ventanillas de otuzco cajamarcaperu america peru ancient antiquities cemetery civilization dead culture cajamarca necropolis niches archaeology architecture bones grave cave cliff window old mountain stone caxamarca south volcanic rock archeology peruvian ruin historic historical inca religious heritage history monument funerary northern pre sarcophagi sarcophagus combaya preinca landmarks tomb andean