Tianbao Village in Zhuhai, Southern Sichuan

Tianbao Village was built in Xianfeng of Qing Dynasty in 1862 to defend Shidakai Taiping Army from entering Sichuan. The ancient trestle road of Tianbao was 1 500 meters long. It was excavated along the trestle road above the cliff cliff. The top of the trestle road was made of rocks. Most of the caves were half-side caves with 13 sturdy stone gates, which were ingenious and easy to defend and attack 199. Seven years later, the local authorities chiseled in the cave the Thirty-six Strategies.