Sigiriya
In under two decades, a usurper king turned a sheer 180-metre granite monolith into a fortified palace with rock-cut summit cisterns and gravity-fed garden fountains that still spring to life in the monsoon today — how was a royal water-supply system this precise engineered, and hauled into place, at that height and on that timeline?
c. 477-495 CE (reign of King Kashyapa I) · Sigiriya, Central Province, Sri LankaAdded July 2026