Stock Photo: Serpentine Pavilion 2012, London, United Kingdom. Architect Herzog & De Meuron and Ai Weiwei, 2012. Crowds gather to listen to Herzog & De Meuron talk about the project.

Stock Photo: 1801-72050 Serpentine Pavilion 2012, London, United Kingdom. Architect Herzog & De Meuron and Ai Weiwei, 2012. Crowds gather to listen to Herzog & De Meuron talk about the project.