The term 'Half a Samoan City' is referring to the city of Pago Pago, which is located on the island of Tutuila in American Samoa. Pago Pago is the capital of American Samoa and is the largest city in the territory. It is known for its harbor, which is one of the best natural harbors in the South Pacific. The city is also home to the National Park of American Samoa, which is the only national park in the United States located south of the equator.