Say you have a photo taken on an iPhone and you want to find out where it was taken.  How can this be done?  Easy:

  1. Open in a photo editor which lets you view the metadata.  For example, gwenview works well on Ubuntu.
  2. Find the following attributes (I’ll give specific values to make this example concrete)
    1. GPS Longitude Reference = West
    2. GPS Latitude Reference = North
    3. GPS Longitude = 0deg 3.19000'
    4. GPS Latitude = 51deg 27.72000'
  3. Given the data above, you’d enter 51 27.72', -0 3.19' into Google Maps. The minus before the latitude is there because the latitude reference is “west” instead of “east”.