|Covid-19|3 – Gungnae City of Goguryeo completed.
40 – Lighthouse at Boulogne built.
52 – Porta Prenestina in Rome built. A subterranean Neopythagorean basilica nearby also dates to this century.
c. 70 – Gateways and balustrades of the Sanchi stupa in India added by the Shunga.
c. 40–60 – Pont du Gard on the Nîmes Roman aqueduct in Gallia Narbonensis constructed.
60s – Domus Aurea in Rome begun.
80 – Colosseum in Rome completed.
1st century in architecture Wikipedia
See also: 1st century BC in architecture, other events of the 1st century, 2nd century in architecture and the architecture timeline.