1. Tang Ling, the founding king of Shang Dynasty, is located in Tangwangling, west of Tushanji Village, Yandianlou Town, which is10km south of the county seat, and about 3km east of Shanghe Highway. The existing paddock is 70m long from north to south, 50m wide from east to west and1.5m high. There is a "Rebuilding Tombstone of the Tang Dynasty" in front of the Ming and Qing Tombs. The existence of modern sites is an important basis for Shang Tang to be the capital of Cao County. 2. The Yi Yin Tomb of Yin Temple in Sheng Yuan Yi in Shang Dynasty is located in Miaoyin Village, a big town in the southeast of the county seat, and is a provincial-level cultural relics protection unit in Shandong Province. Every year on February 2 1 day of the lunar calendar, a temple fair is held to celebrate Yi Yin's birthday, which has become a tourist attraction in Cao County, and dozens of people often come around to pray for their children. 3. Ji Zi's Tomb, Late Yin Dynasty. The Ambassador of the Republic of Korea to People's Republic of China (PRC) (China) visited the tomb of Zhengzhuang Town in Cao County in June 2005. 4. Shandong Southwest Martyrs Cemetery The Shandong Southwest Martyrs Cemetery is located 28.4 kilometers northwest of the county seat and 200 meters northeast of Sunzhuang Village, Hanji Town. This park was built in memory of the martyrs on September 27th. 5. Hongsancun Joint Defense Site Hongsancun Anti-Japanese Joint Defense Site is located 30 kilometers northwest of Hanji Town. Including Liugang, Yizhuang, Caolou and other villages, in the shape of a pin, it was the source of the revolutionary base in southwestern Shandong during the War of Resistance against Japanese Aggression period and was known as "Little Yan 'an". 6. The battle site of Wangchang is more than ten kilometers southwest of Cao County, and there is a levee more than ten meters high, which is the battle site of Wangchang.