English operator: Panoramio described at URL: https://web.archive.org/web/20161025051313/http://www.panoramio.com/photo/89554690...
English Italian via Clavature, Bologna operator: Panoramio described at URL: https://web.archive.org/web/20161101214322/http://www.panoramio.com/photo/122541141...
English Italian Via Calzolerie vista da via Rizzoli, Bologna operator: Panoramio described at URL: https://web.archive.org/web/20161031002228/http://www...
English Italian via Clavature, Bologna operator: Panoramio described at URL: https://web.archive.org/web/20161101214227/http://www.panoramio.com/photo/122541140...
English Italian via Caprarie, Bologna operator: Panoramio described at URL: https://web.archive.org/web/20161025030201/http://www.panoramio.com/photo/89555181...
English Italian Case Schiavina (con tipici sporti e beccadelli in legno), via Clavature, Bologna operator: Panoramio described at URL: https://web.archive...
English operator: Panoramio described at URL: https://web.archive.org/web/20161025182418/http://www.panoramio.com/photo/89619178 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161024205031/http://www.panoramio.com/photo/89555196...
English operator: Panoramio described at URL: https://web.archive.org/web/20161026210358/http://www.panoramio.com/photo/89555164...
English operator: Panoramio described at URL: https://web.archive.org/web/20161031002230/http://www.panoramio.com/photo/122541157...