English operator: Panoramio described at URL: https://web.archive.org/web/20161015153821/http://www.panoramio.com/photo/39492380...
Railway Bridge over Daugava in Riga operator: Panoramio described at URL: https://web.archive.org/web/20161012105529/http://www.panoramio.com/photo/13407268...
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archive.org/web/20161024103458/http://www.panoramio.com/user/760796?with_photo_id=72310401 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161024163821/http://www.panoramio.com/user/760796?with_photo_id=88996696 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161028181855/http://www.panoramio.com/user/118437?with_photo_id=90724664 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161026182909/http://www.panoramio.com/user/118437?with_photo_id=89824445 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161024205605/http://www.panoramio.com/user/652539?with_photo_id=72452454 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161015090234/http://www.panoramio.com/user/118437?with_photo_id=36133775 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161025102026/http://www.panoramio.com/user/760796?with_photo_id=89033623 operator: Panoramio described at URL: https://web.archive...
