English operator: Panoramio described at URL: https://web.archive.org/web/20161024024718/http://www.panoramio.com/photo/61530297...
English operator: Panoramio described at URL: https://web.archive.org/web/20161027213719/http://www.panoramio.com/photo/95543132...
archive.org/web/20161025200317/http://www.panoramio.com/user/967090?with_photo_id=74322997 operator: Panoramio described at URL: https://web.archive...
Italiano: Milano - Arco della Pace interno lato destro: bassorilievo raffigurante il "Congresso di Praga", opera di Luigi Acquisti (1745-1823), condotta...
English operator: Panoramio described at URL: https://web.archive.org/web/20161031154049/http://www.panoramio.com/photo/128862351 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161020231001/http://www.panoramio.com/photo/61534787...
panoramio.com/user/52631?with_photo_id=9577782 operator: Panoramio described at URL: https://web.archive.org/web/20161011230422/http://www.panoramio.com/photo/9577782...
English operator: Panoramio described at URL: https://web.archive.org/web/20161027203353/http://www.panoramio.com/photo/95368583...
archive.org/web/20161103162757/http://www.panoramio.com/user/8985924?with_photo_id=132881223 operator: Panoramio described at URL: https://web.archive...
English operator: Panoramio described at URL: https://web.archive.org/web/20161027235442/http://www.panoramio.com/photo/97854862...
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