Get list of countries and /or list of cities via web service

Question

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Where can I get a list of all countries/cities to populate a listbox?

Is there any web service which provides a list of all (almost all) countries and/or a list of all (almost all) cities of the world?

Answer 1

you could use the GeoName API.

http://www.geonames.org/export/JSON-webservices.html#citiesJSON

for more info

http://www.geonames.org/