Sydney Opera House belongs to the Common Era — dated here to c. 1973 CE at Sydney, Australia. Dates mark a scholarly centre of gravity (dedication, completion, or iconic phase), not a single foundation day.
Utzon’s shells — spherical geometry solved after years of engineering pain — sitting like sails on the harbour.
How it amazes the brain
Precast rib segments from a single sphere recipe. The interiors fought the architect; the exterior won forever.
Why it counts as a wonder
It never needed a contest ballot to scramble the brain: scale, craft, or sheer improbability is enough.
UNESCO-listed proof that a roof can be a national identity.
On dating
CE means years after the traditional birth of Christ. A monument listed as c. 1973 CE may have been founded earlier, rebuilt later, or become famous only in one phase. Engineering wonders (dams, tunnels, orbiting labs) are dated to opening or assembly.
This is story 28 of 100 in The Trend Ledger’s illustrated desk on world wonders raised after the birth of Christ — the companions to our BCE series.