Aymara Culture 1000AD, pre-Inca observatories at Sillustani near Puno, chullpa tombs on hillside beyond, Lake Titicaca, Peru

10th century tourism destination tower titicaca stonework stone south america site sillustani scenic ruins ruin puno prehispanic precolumbian pre inca peruvian peru outdoors observatory monument latin america landscape landmark lake titicaca lake historic place historic famous place famous destination culture circular chullpas aymara architecture archeological anthropology ancient