The Great Wall, a great legacy of humanity, is being threatened by various factors. Li Yong, who grew up in an ancient village at the foot of the Great Wall, loves the Great Wall from the bottom of his heart. In 2018, he gave up his city job, returned to his hometown, and became a Great Wall guardian. For more stories: https://www.cgtn.com/specials/2024/china-race-to-the-future.html