Architect Ar. Hijjas Kasturi turns 90 this month. From his unconventional path into architecture and his arrival in Kuala Lumpur in the 1960s, to shaping some of the city's most recognisable buildings and helping establish architecture education in Malaysia, his story is closely tied to the story of modern Kuala Lumpur. We speak to Hijjas about his ideas on Malaysian architecture, the creation of Rimbun Dahan, and why, at 90, he's still making, experimenting and painting.