LIMA, PERU—The remains of eight people estimated to be 800 years old were discovered by workers laying gas pipes near Lima, according to an AFP report. The bodies, which included adults and children thought to have lived in the nearby ancient town of Chilca, had been wrapped in bundles of plant material before being placed in the mass grave. Archaeologist Cecilia Camargo said that shells had been placed on some of their heads, and some of them had...