Zhonghua Gate , said before JACKPOT door , the shape of earthenware pots , also known as Urn . After the Nationalist government capital in Nanjing , in order to get rid of some of the gates of feudal superstition name change , " JACKPOT door" was renamed " China Gate " plaque on the gates now , " China Gate ," the words of Chiang autograph book. Zhonghua Gate was built in the Yuan positive Hongwu twenty-six years to nineteen years ( AD 1366 - 1386 ) , made ​​in the expansion of the Southern Tang capital of South Gate basis.

Urn Zhonghua Gate in Nanjing city landmark , is ten Qinhuai East and West Fifth Five- li li binding sites , binding sites Confucius Temple Qinhuai Scenic Belt and the city wall River. Layout rigorous, unique structure , the three Urn , four coupons through the door . Each ticket gates are up and down start " extremely heavy gates " and double-leaf doors . In case of enemy soldiers scored within the gates " extremely heavy gates " rapid descent , cutting off retreat , ambush everywhere , were wiped out , just Guanmendagou , Wengzhongzhuobie . The first three gates into the uppermost three original wooden structure built Chongyanxieshan dysprosium floor , Jiaqing years ( AD 1796 - 1820 ) dysprosium building collapsed , fundraising Jiangning County rebuilt , narrow shape . 1937 Winter Kou occupied Nanjing , dysprosium floor destroyed. Middle masonry structure, built facing north have tied seven Cangbing hole. The lower middle of the building through Urn coupons door , left and right sides of each building Cangbing hole three . Also in the east and west sides of each building Urn Cangbing hole seven . There twenty-seven entire Urn Cangbing hole can Cangbing thousand, possession million quintals of grain . Zhonghua Gate 's " Cangbing hole " is China's ancient city gate of the few unique buildings in the ancient war material reserves and manpower to ambush has a very important role .