This document discusses the city innovation of public arts in Bangkok, Thailand. It highlights how concepts of temporality, transience, and fun have been innovatively employed in contemporary public art interventions. New forms of participative art and community art have emerged, related to urban policies of inner city regeneration and community revitalization. Public and private sectors have increasingly partnered to support public arts. Two types of spaces have been targeted - contemporary public spaces like malls and transit areas, and local communities/neighborhoods. Shopping malls and transport hubs in Bangkok's central business district have attracted the most participative art exhibitions and events outdoors from 2006-2010.