scraplab — Using Geoplanet Data in Ruby on Rails
Geoplanet is a database of 5.4 million places in a hierarchy. Each entry has a unique, permanent ID (WOEID), a name and a place type. For example, Homerton (20089379) is a Suburb in the London Borough of Hackney (12695808), which is a LocalAdmin in London (44418), which is a Town in Greater London (23416974), and so on.

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