Wikimapia is an online editable map - you can describe any place on Earth. Or just surf the map discovering tonns of already marked places.
The region: parameter specifies the political region for terrestrial coordinates. It is used to select appropriate map resources. If no region: parameter is provided, GeoHack attempts to determine the region from the coordinates. The region should be supplied as either a two character ISO 3166-1 alpha-2 country code or an ISO 3166-2 region code.