Introduction to the Dougong: The shape and structure of the Dougong in Feiyun Tower are extremely varied. The number of dougongs and the upturned form of the dougongs on almost every floor are different. The playing heads include grasshopper heads, single floating clouds, dragon heads, cirrus clouds, etc.; the horns of the horn family have elephant trunks and dragon heads, and the mouths of the horns have two types: piano-shaped and ruyi-headed ones, which are full of decorative interest.