English operator: Panoramio described at URL: https://web.archive.org/web/20161024012254/http://www.panoramio.com/photo/55963775 determination method...
archive.org/web/20161021135048/http://www.panoramio.com/user/4084506?with_photo_id=56119393 operator: Panoramio described at URL: https://web.archive...
