Höweler + Yoon's ShadowPlay opened recently in downtown Phoenix, Arizona. The project is a public parasol at an urban scale formed by an aggregation of geometric modules. Together, the modules create a hovering canopy which filters the intense Phoenix sun, casting variable shadows on the pedestrian space throughout the day. Photovoltaic panels mounted to the top surface of several cells generates the power to illuminate the parasol in the evening.
Learn more about the project, here: http://architecture.mit.edu/architectural-design/project/shadow-play-0