Due to religion was always related with the supreme imperial power, Beijing at one time served as the focus of religious life with lots of beautiful temples. The Temple of Heaven, where the Emperors paid homage to the glory of heaven, is the largest group of structures in the country dedicated to rituals. To be opposite, the Altar of Earth was used to worship the God of the Earth. The Great Bell Temple, where the Emperor prayed for rainfall in the Qing Dynasty.