Barabar Caves
How did Mauryan-era masons, working with Iron Age tools roughly 2,250 years ago, hollow chambers out of solid granite — one of the hardest rocks masons ever cut — and then polish the interior walls to a mirror-grade finish so fine it still throws a sharp reflection today?
3rd century BCE (Maurya Empire, reigns of Ashoka and Dasaratha) · Barabar Hills, Jehanabad district, Bihar, IndiaAdded July 2026