Resumen
Sillustani sits on a windswept peninsula reaching into Lake Umayo, on the high Altiplano plateau near Puno and the shores of Lake Titicaca, at an elevation of roughly 3,900 metres. It is the most spectacular of a number of chullpa cemeteries in the Lake Titicaca region, associated primarily with the Colla, an Aymara-speaking people who dominated the northern Titicaca basin in the centuries before the Inca conquest of the region in the 15th century CE.
The chullpas are above-ground funerary towers, cylindrical and typically wider at the top than the base, built to house the mummified remains of important individuals along with their families and grave goods. Inside, the dead were placed in a fetal position, often mummified, and the tower sealed — with a single small opening, generally facing east toward the rising sun, through which the interred were symbolically connected to the cycle of death and rebirth. The largest and most famous tower at Sillustani, sometimes called the "Lizard Chullpa" after a carving on its surface, stands over 12 metres tall.
What makes Sillustani exceptional is the quality of its finest stonework. While many chullpas across the Altiplano are built of rough fieldstone, the most accomplished towers at Sillustani are constructed from large, carefully dressed blocks fitted together with remarkable precision, their smoothly curving outer walls achieved despite the difficulty of shaping and fitting stone to a convex surface — a technical feat that reflects the fusion of local Colla funerary tradition with the sophisticated stoneworking associated with the Inca, who conquered the Colla and continued to build and use chullpas at the site. Some of the most refined towers are attributed to this Inca-influenced or Inca-period phase, and their masonry invites direct comparison with the famous fitted stonework of Cusco and other Inca centres.
Many of the towers were left unfinished, and several show evidence of having been struck by lightning or damaged over the centuries, while others were looted long ago, their contents removed. Nonetheless, archaeological study of the chullpas and surrounding remains has illuminated the funerary practices, social hierarchy, and beliefs about ancestors and the afterlife that were central to Andean societies of the Titicaca basin, in which the mummified dead remained important social presences, consulted and honoured by the living rather than simply buried and forgotten. Sillustani is one of Peru's most visited archaeological sites, though it is not individually a UNESCO World Heritage Site.