The Chullpas of Sillustani
How did Andean builders raise dry-stone funerary towers up to 12 meters tall that grow wider as they rise — flaring outward to a top broader than their base — from mortarless, precisely fitted blocks, on a windswept peninsula at nearly 3,900 meters in a seismically active corner of the Andes?
Late Intermediate Period through Late Horizon (c. 12th–16th century CE; Colla, later Inca) · Sillustani, Lake Umayo, Atuncolla, Puno Region, PeruAdded July 2026