Introduction to Huanyun Tower: Huanyun Tower faces the Jingguan Hall. It is connected from east to west, in the shape of a series of buildings, and can lead to Guantao Tower and Boat Hall. The horizontal plaque "Huanyun" in Huanyun Tower is a famous name for Shanghai in the late Qing Dynasty. Gentle and Yao essay title. Huanyun Tower was originally the property of Shanghai Qianye Office. Yuyuan Garden and Inner Garden were repeatedly destroyed by wars, but this building was spared.