Introduction to the Bell Pavilion: Located next to the tower, the iron bell in the Bell Pavilion is an iron bell from the Ming Dynasty, cast in the first year of Chongzhen in the Ming Dynasty (i.e. 1628). The bell is 150 centimeters high and 106 centimeters in diameter. The upper part is decorated with lotus flowers commonly used in Buddhism, and the lower part is decorated with Bagua patterns commonly used in Taoism. The sound of the bell can be heard throughout the city. When the Central Committee of the Communist Party of China was in Yan'an, it was used to tell the time and call the police.