English operator: Panoramio described at URL: https://web.archive.org/web/20161023205234/http://www.panoramio.com/photo/55147228 determination method...
archive.org/web/20161023010032/http://www.panoramio.com/user/4784666?with_photo_id=55145961 operator: Panoramio described at URL: https://web.archive...