Surrounding one of the largest natural harbors in the world, Sydney is the largest city in Australia and Oceana with more than 4 million residents. The city extends to the west until it reaches the Blue Mountains.
Tianjin s a metropolis in northern China and one of the five national central cities of the People's Republic of China. Tianjin borders Hebei Province and Beijing Municipality, bounded to the east by the Bohai Gulf portion of the Yellow Sea. Part of the Bohai Economic Rim, it is the largest coastal city in northern China.
Natural color mosaic of Tokyo Prefecture, Japan. The Tokyo greater metropolitan area is the most populated in the world with more than 13 million people with population density is 16,000 people per square mile. Mt. Fuji is located in the southwest corner of the iamge.
