2nd century in architecture

Buildings and structures

104–106 – Alcántara Bridge across the Tagus is Spain is built by order of Trajan.
113 – Trajan's Column in Rome is completed.
122 – Construction of Hadrian's Wall in Britain begun.
c. 128 – Pantheon in Rome is completed.
129/130 – Arch of Hadrian in modern Jerash, Jordan is completed.
132 – Temple of Olympian Zeus, Athens, begun around 520 BC, is completed.
134 – Ponte Sant'Angelo in Rome is completed.
180–200 – Porta Nigra in Trier, Germania, is constructed.
year unknown – Kallanai Dam (Grand Anaicut) in Tamil Nadu is completed.