Jetavanaramaya
How did 3rd-century Sri Lankan builders stack tens of millions of hand-made bricks into a 122-metre solid dome — the largest brick structure ever raised — and get the foundation, the brick chemistry and the dome's profile right enough that it is still standing 1,700 years later?
c. 273-332 CE (Anuradhapura period; begun by King Mahasena) · Anuradhapura, North Central Province, Sri LankaAdded September 2026