Qikun international children's education center. Ningbo Drum Tower was built in the first year of Tang Changqing (82 1), with a history of more than 1 100 years. Ningbo Gulou Qikun International Children's Education Center has learned Pinyin, which is a symbol of the official establishment of Ningbo as a city in history. Ningbo Drum Tower is the only remaining architectural site of the ancient city in Ningbo, and it is one of the key ancient buildings under national cultural relics protection.