The new science-fiction museum of Chengdu has opened by hosting the World Science Fiction Museum (WorldCon). Beside Jingrong Lake, the 59,000-square-meter museum is located within the Pidu District of the capital of Sichuan province. The project defines nodes of activity connected by pedestrian routes that extend from the city through the surrounding parkland into the heart of the building, where indoor and outdoor plazas on multiple levels interweave to organize the museum facilities. The roof’s fluid forms emulate an expanding nebula cloud with a star at the center. The design was developed through detailed digital modeling analysis to maximize efficiencies in composition, site conditions, solar irradiation, and structure. The park around the museum collects and stores rainwater for natural filtration and reuse, enabling the lake to become an integral part of Chengdu’s sustainable drainage system, which will mitigate flooding.