English heading: 180 degree operator: Panoramio described at URL: https://web.archive.org/web/20161030073309/http://www.panoramio.com/photo/90940525...
archive.org/web/20161028215346/http://www.panoramio.com/user/2445474?with_photo_id=105657244 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161028141652/http://www.panoramio.com/user/7771407?with_photo_id=92577879 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161102152922/http://www.panoramio.com/user/2445474?with_photo_id=105657319 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161015000821/http://www.panoramio.com/user/3143229?with_photo_id=134110313 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161103122519/http://www.panoramio.com/user/4208745?with_photo_id=130134710 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161031035644/http://www.panoramio.com/user/6049705?with_photo_id=114337962 operator: Panoramio described at URL: https://web.archive...
panoramio.com/user/7158?with_photo_id=102232821 operator: Panoramio described at URL: https://web.archive.org/web/20161027184110/http://www.panoramio...
archive.org/web/20161028181048/http://www.panoramio.com/user/7015784?with_photo_id=106057678 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161016153955/http://www.panoramio.com/user/338387?with_photo_id=49850979 operator: Panoramio described at URL: https://web.archive...