This type is for administrative divisions of countries of any level below the country itself and above city or town. Examples are Australian states, US states and counties, Canadian provinces, and French departments. This type should also be used for territories; many territories will be typed as both administrative division and country, since, depending on context, they may be considered as either. The ultimate goal is to model the administrative divisions of each country (we've started with the top twenty internet users), but this will obviously take some time. If you have expertise in the divisions of any countries we haven't done yet, feel free to try modeling them in your private domain and post a note in the discussion here.
An island is any piece of land surrounded entirely by water. Archipelagoes and other named groups of islands should be typed as "island group", rather than as "island".The majority of topics currently typed as islands come from Wikipedia categories (e.g., "Islands of Antarctica"); because of this, there are probably still a small number of topics that have the "island" type, but which are not actually islands. These are mostly island groups, but a wide variety of types such as cities, buildings, and even political parties, have turned up. If you encounter one of these, please change the type accordingly.
A raion is the second-level administrative division of Ukraine.
Census tracts are small, relatively permanent statistical subdivisions of a county delineated for the purposes of gathering and comparing census data.
This type is intended to be used for hotels, bed and breakfasts, backpacker hostels, or any other such place you might stay while travelling.
A travel destination is a location that you might go to for a vacation/holiday, eg. Paris or Bali. Usually it is a city or region, rather than a whole country (unless the country is very small, eg. some island nations.)
This type should be used for any place that is considered to have neighborhoods. Because the concept of a neighborhood varies from place to place, this type can include cities and towns as well as larger metropolitan regions.
A waterfall is a geological formation resulting from water, often in the form of a stream, flowing over a rock formation that forms a sudden break in elevation.
A mountain range is a group of mountains bordered by lowlands or separated from other mountain ranges by passes or rivers.
This type is used for all city-like administrative divisions of Germany, including cities, towns, and villages.
A capital of an administrative division is the location (usually a city) where the government is located. This type includes the seats of government of all sub-national administrative divisions, regardless of the term typically used. Thus this type includes administrative centers, county seats, municipal seats, préfectures, etc.
A "HUD foreclosure area" is an area (in the United States) for which the Department of Housing and Urban Development (HUD) has published home foreclosure information. These "areas" generally correspond to a US county (or county-equivalent), census tract, or "county-place" (which is a region entirely within a county, which may or may not fully correspond to any other sub-division of a county, such as a city or township).