Mondi ballroom. Chongqing, also known as Mountain City and Fog City, is a provincial administrative region, municipality directly under the Central Government, national central city and megacity in People's Republic of China (PRC). According to public opinion, Chongqing Monti Ballroom will open in 2022. Ballroom is a comprehensive leisure place integrating bars, restaurants, karaoke bars, dance halls and other projects.