Such as Longqiao, the longest wooden arch bridge in the country, is located in Yueshan Village, Jushui Township, Qingyuan County, Zhejiang Province, spanning Juxi, north and south, five years (1625) tomorrow, the full length 28.2 meters, the net span 19.5 meters, the Yagao 6.8 meters, the width 6 meters, there is a corridor house in ninth, is the exact year in the country so far, The longest-lived wooden arch bridge. For example, Longqiao has beautiful shape, complex structure, exquisite craftsmanship and complete functions, which has a certain representativeness and high historical, artistic and scientific value. In 1997, it was announced as a provincial-level cultural relics protection unit, in 1998, and in 2001 it was announced as the fifth batch of key national cultural relics protection units. For example, the internal structure of Longqiao such as the long bridge bridge, dozens of thick Hemu vertical and horizontal combinations are riveted, forming the arched surface of the corridor house. The three buildings, bridges and pavilions in the corridor house are in one, and the Ruyi Dou arch is superimposed on layers, like a lotus flower in full bloom, and the shape is unique in the country. In addition to its beauty, this Ruyi Dou arch can decompose the gravity science of the roof of the corridor, balance the gravity, and make the corridor house more solid. The three words "like dragon bridge" hung above the shrine, three big words are strong and powerful, living like a giant dragon, and it is said that Wu Zhiqiu, a Liren, was written when he was eight years old. Such as the dragon bridge, such as the dragon bridge, such as the dragon bridge, such as the dragon bridge, dozens of thick and large cone combinations are riveted together, forming the arched bone plane of the corridor house. The three buildings, bridges and pavilions in the corridor house are in one, and the Ruyi Dou arch is superimposed on layers, like a lotus flower in full bloom, and the shape is unique in the country. In addition to its beauty, this Ruyi Dou arch can decompose the gravity science of the roof of the corridor, balance the gravity, and make the corridor house more solid. Above the shrine hangs the three words "like a dragon bridge" ancient scorpion, three big words are strong and powerful, living like a giant dragon vacating, and it is rumored to be the book of Wu Zhiqiu, a Liren, when he was eight years old.