Sigiriya LiDAR Scanning: Fact-Checking the Hidden City Claims
Discover the truth behind LiDAR surveys at Sigiriya. Learn how 3D laser scanning and drone mapping were actually used for heritage conservation and digitisation. Uncovering the Truth About LiDAR at Sigiriya: Fact vs. Fiction Introduction Sigiriya, Sri Lanka's iconic ancient rock fortress and UNESCO World Heritage site, continues to capture global imagination. In recent years, viral social media claims have circulated online, suggesting that advanced LiDAR technology has uncovered a "huge hidden city" buried beneath the fortress complex. While cutting-edge remote sensing and 3D documentation technologies have indeed been applied to Sigiriya, distinguishing between actual scientific research and exaggerated internet lore is crucial. This article separates verified archaeological data from hyperbole, exploring the genuine history of LiDAR and 3D laser-scanning projects at Sigiriya. 1. The Real History: "Digitising Our Heritage" (2017–2018) The most rob...