Media
        
        
      
          
        
        
      
          
        
        
      
          
        
        
      
          
        
        
      
    Pictures by Jiyang Chen and Pierre Lidar
        
        
      
          
        
        
      
          
        
        
      
          
        
        
      
          
        
        
      
    Pictures by Jiyang Chen and Pierre Lidar