Futuristic, traditional, artistic: The 81st World Science Fiction Convention WorldCon is being held at the Science Fiction Museum in Chengdu, Sichuan. The theme: Meet the future. More than 200 activities, including roundtable discussions, salons and exhibitions, focus on the relationship between the city and the future. Visitors can also meet fantasy figures like this cosmic dancer, as well as famous science fiction authors, including Robert J. Sawyer and Liu Cixin.