Before mayors from around the world gathered for the Global Mayors Dialogue in Dunhuang, northwest China's Gansu Province, CGTN's Yang Xinmeng set out to explore what makes this desert city a meeting point of civilizations. From the timeless murals of the Mogao Grottoes to the golden dunes of the Mingsha Mountains, she traces how Dunhuang still connects the world, not through trade routes, but through shared memories and human stories.