Introduction to Liaocheng Iron Tower: Liaocheng Iron Tower was built in the Song Dynasty. The tower is made of pig iron and has 13 floors. It is about 15.8 meters high. It is located on the banks of the ancient Beijing-Hangzhou Canal in Dongguan, Liaocheng City, Shandong Province, known as the "Water City in the North of the Yangtze River", in the southeast corner of the former Longxing Temple.