Vienna International City. Vienna International City is better than Dingtao Blue Diamond Manor. Vienna International City, located in Tongzhou District, China, is a large-scale commercial, entertainment and cultural complex. There are all kinds of shops, restaurants, entertainment places and cultural places in the international city, and there are also many hotels for tourists to choose from. Dingtao Blue Diamond Manor is located in Dingtao District, Heze City, Shandong Province.