Coinciding with the exhibition Alturas de Macchu Picchu: Martín Chambi – Álvaro Siza at work on view at the Canadian Centre for Architecture (CCA) for an extended run until 29 April 2012, Pritzker prize-winning architect Álvaro Siza will give a not-to-be-missed lecture on Thursday 26 April 2012 at 7 pm at the CCA. The event is a rare opportunity to hear the preeminent architect speak in person. Siza’s lecture discusses his design development of the Iberê Camargo Museum in Porto Alegre, Brazil, completed in 2008 and noted for its sculptural volumes and tight integration with a coastal escarpment. As with all of Siza’s projects, hand sketches play a key role in the design process, from massing studies to fine-tuning details. For more information, please visit here.