Introduction to Longzhu Bridge: is a stone arch bridge connecting Hajj Square and Gongji Avenue. It consists of three arch bridges. The main bridge is in the middle, 6 meters wide, and the side bridges on both sides are 3 meters wide. The bridge rails are carved with ancient musical instruments. The patterns include zither, zither, yu, sheng, flute, xiao, cloud board, chimes, yueqin and pipa.