This podcast episode focuses on the 6th Silk Road International Cultural Expo in Dunhuang, China, and its theme of "Connecting the World, Cultural Exchanges and Mutual Learning Among Civilizations." The speakers discuss their experiences exploring the city, including climbing the Echoing Sand Mountain, visiting the Mogao Caves, known for their exquisite murals, and learning traditional dance. They also highlight the significance of digitalization in preserving cultural relics and making them accessible to a global audience through virtual reality and digital exhibitions. The episode emphasizes the rich cultural heritage of Dunhuang and the importance of preserving and sharing it through innovative technologies.