How do you get the country/state/region/city/state/zip/postal from GPS coordinates?

Question

I have GPS coordinates on all of my photos. I want to include tags/IPTC data for the city, state, zip, etc.. However all I have is the GPS coordinates. How can I take these and

Answer 1

Here is a bulk Reverse Geocoder which, internally, uses the Google Maps API to reverse geocode an entire series (in a CSV file) of latitude and longitude pairs.

It would make this fairly easy.