The "Hengchun Old Town" (恆春古城) is one of the best-preserved historical towns in Taiwan with four gates intact and about half of the walls remaining. It was built during the Qing Dynasty in the 1st year of the Guangxu Era (1875) and completed in 1879. It has a north, east, south, and west gate and the outer circumference of the moat measures 880 zhang (about ). In 1988, an actual measurement of the length was conducted, showing that the length in total amount to .