Exploring the Mysteries of the Andes May 8, 2015 1000 × 750 Exploring the Mysteries of the Andes Sillustani: Picturesque Tombs The largest of Sillustani’s cylindrical tombs, known as Chullpas, stands 12 metres tall and dominates the wilderness of Sillustani’s remote location. © Robin Heyworth – Photo taken 28th March 2002