The Great Wall of Qi is one of the oldest defensive walls in China, built by the Qi state during the Spring and Autumn period (around 685–591 BCE) through the Yushan National Forest Park south of Zibo. Sections of the wall survive in varying states of preservation, with the park providing the most accessible stretch, where the stone foundations and earthen ramparts run along ridgelines with good views over the Shandong uplands.
The park also contains a "dinosaur valley" with fossil displays, ski facilities in winter, and forest hiking trails. The wall section here is about 70 kilometers south of central Zibo; accessible by bus to the park entrance and then on foot. The combination of ancient military engineering and mountain scenery makes it an appealing half-day trip from the city.