States of Austria arable terrain. The other five states, in contrast, are located in the Alps and thus are comparatively unsuitable for agriculture. Their terrain is also relatively unfavourable to heavy industry and long-distance trade. Accordingly, the population of what now is the Republic of Austria has been concentrated in the former four states since prehistoric times. Austria's most densely populated state is the city-state of Vienna, the heart of what is Austria's only metropolitan area. Lower Austria ranks only fourth with regard to population density even though it contains Vienna's suburbs; this is due to large areas of land being predominantly agricultural.
Political divisions of the United States origin to state recognition. Residents of a reservation may vote as residents of a state and are required to pay federal taxes. The special status of reservations has created both opportunities (such as gambling in states that normally disallow it) and challenges (such as the unwillingness of some companies to do business in an area where they are not certain what laws will apply to them). The two former unincorporated U.S. territories are: Additionally, the United States administered the Trust Territory of the Pacific Islands from July 18, 1947 until October 1, 1994. The trust territory was subsequently divided into