- Open international design competition for Klaksvík town centre, in the Faroe Islands
- OPEN Reveals Design for Shanfeng Academy Building in Suzhou
- Opening of the largest Digital Art Centre in the World
- Opening of the SLS Hotel South Beach Miami designed by Starck
- OPERA: Edoardo Tresoldi's Absent Matter on Reggio Calabria’s seafront
- Oporto Show 2012 - On the Stage
- Oppo’s O-Tower by BIG: an infinity loop on the Hangzhou horizon