Machu Picchu belongs to the Common Era — dated here to c. 1450 CE at Peru. Dates mark a scholarly centre of gravity (dedication, completion, or iconic phase), not a single foundation day.
An Inca royal estate locked onto a knife-edge ridge — dry-stone walls that flex in earthquakes without mortar.
How it amazes the brain
Ashlar fitted so tightly a blade won’t pass. Terraces, fountains, and Intihuatana solar stone align mountains into sacred geometry.
Why it counts as a wonder
It sits on the New7Wonders of the World list (2007 global poll) — a modern people’s roster of amazement.
“Rediscovered” for the outside world in 1911. The brain-amaze is still the precision on a cloud island.
On dating
CE means years after the traditional birth of Christ. A monument listed as c. 1450 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 5 of 100 in The Trend Ledger’s illustrated desk on world wonders raised after the birth of Christ — the companions to our BCE series.