Foreign students learn about hand puppet performances inside a Tulou in Nanjing county, East China's Fujian Province, on December 11, 2024. Fujian Tulou, which dates back to the Song (960-1279) and Yuan (1279-1368) dynasties, are circular fortress-like Chinese rural dwellings built by the Hakka people in the mountainous areas of Fujian. Photo: VCG