Beijing: Situated at the northern end of the central axis of inner Beijing, to the north of Di'anmen Street, Beijing's drum and bell towers were built in 1420 under Ming Emperor Yongle. The drum tower is a solid square terrace 4 meters high, 55.6 meters long and 30 meters wide. It was equipped with water clocks and drums were beaten to mark the passing of each hour.

Nanjing: Built in the Ming Dynasty, Nanjing drum tower is two stories tall. The lower floor is an arched beamless hall and the upper floor is a wooden structure with double eaves. The city's bell tower was destroyed at the end of the Qing Dynasty, after which the Bell Pavilion was built, which now houses the city's old bell.

Zhengding: This small bell tower in Kaiyuan Temple is believed to be China's only remaining Tang Dynasty bell tower. Inside it hangs a bell 2.9 meters in height and 1.56 meters in diameter at its mouth.

China Daily

(China Daily 03/08/2013 page18)