English operator: Panoramio described at URL: https://web.archive.org/web/20161016122205/http://www.panoramio.com/photo/43280393...
English determination method or standard: SHA-1...
Ceilings in Lincoln Cathedral English operator: Panoramio described at URL: https://web.archive.org/web/20161019213152/http://www.panoramio.com/photo/67507090...
English operator: Panoramio described at URL: https://web.archive.org/web/20161016122237/http://www.panoramio.com/photo/43280398 determination method: SHA-1...
archive.org/web/20161029063444/http://www.panoramio.com/user/7508506?with_photo_id=101541088 operator: Panoramio described at URL: https://web.archive...
English East end of Lincoln Cathedral, with wall buttress, and chapter house with flying buttresses. (1185–1311) operator: Panoramio described at URL: https://web...
archive.org/web/20161029131119/http://www.panoramio.com/user/7508506?with_photo_id=101541015 operator: Panoramio described at URL: https://web.archive...
operator: Panoramio described at URL: https://web.archive.org/web/20161029095113/http://www.panoramio.com/photo/101541066 determination method: SHA-1...
English operator: Panoramio described at URL: https://web.archive.org/web/20161017085638/http://www.panoramio.com/photo/43280674...
English operator: Panoramio described at URL: https://web.archive.org/web/20161022071308/http://www.panoramio.com/photo/67506124...