http://maps.googleapis.com/maps/api/geocode/output?parameters

http://maps.google.com/maps/api/geocode/xmllatlng=53.244921,-2.479539&sensor=false&region=gb

http://maps.googleapis.com/maps/api/geocode/xml?latlng=53.244921,-2.479539&sensor=true

<address_component>
    <long_name>Northwich</long_name>
    <short_name>Northwich</short_name>
    <type>postal_town</type>
</address_component>