Introduction to Guanle Building: Guanle Building was built in 1920 with donations from Wu Shanqing, the great-grandson of Wu Yin, the founder of the Seal Society, to commemorate Jizha, the ancestor of the Wu family. Jizha was a prince of the Wu State in the Spring and Autumn Period. He once visited the Lu State. During his visit, he asked to watch the music and dance of the Zhou Dynasty, and Guanle got its name from this.