archive.org/web/20161023180002/http://www.panoramio.com/user/1699605?with_photo_id=52540889 operator: Panoramio described at URL: https://web.archive...
English Information board in Balboa Park, San Diego, California German Informationstafel im Balboa Park in San Diego im US-Bundesstaat Kalifornien language...
archive.org/web/20161024033525/http://www.panoramio.com/user/1699605?with_photo_id=52489878 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161023191809/http://www.panoramio.com/user/1699605?with_photo_id=52490076 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161021061924/http://www.panoramio.com/user/1699605?with_photo_id=52540876 operator: Panoramio described at URL: https://web.archive...
English operator: Panoramio described at URL: https://web.archive.org/web/20161021011028/http://www.panoramio.com/photo/52541012...
English operator: Panoramio described at URL: https://web.archive.org/web/20161102205841/http://www.panoramio.com/photo/127717102 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161022062553/http://www.panoramio.com/photo/52540474...
archive.org/web/20161023192907/http://www.panoramio.com/user/1699605?with_photo_id=52540480 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161024033508/http://www.panoramio.com/user/1699605?with_photo_id=52489870 operator: Panoramio described at URL: https://web.archive...