Yahoo! GeoPlanet Data
The datafiles contain the WOEID, the placename, and the WOEID of its parent entity, the list of administrative places, alternate names in multiple languages indexed against the WOEID.
Yahoo! GeoPlanet helps bridge the gap between the real and virtual worlds by providing an open, permanent, and intelligent infrastructure for geo-referencing data on the Internet. This page provides open access to the underlying data under a Creative Commons Attribution license so that you can incorporate WOEIDs and the GeoPlanet hierarchy into your own applications.