archive.org/web/20161019193202/http://www.panoramio.com/user/969909?with_photo_id=52095460 operator: Panoramio described at URL: https://web.archive...
English German Besucher-Informationszentrum und Eingang zum Freilichtlabor Lauresham object of statement has role: photographer author name string: Immanuel...
mouth) at Zeche Nachtigall, Dünkelberg quarry in Witten (Germany) German Eingang des Nachtigallstollens im Steinbruch Dünkelberg (Muttental), Witten object...
archive.org/web/20161029042229/http://www.panoramio.com/user/4645711?with_photo_id=106407439 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161021045719/http://www.panoramio.com/user/4645711?with_photo_id=62820946 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161015011232/http://www.panoramio.com/user/1539532?with_photo_id=34861384 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161015185223/http://www.panoramio.com/user/4868258?with_photo_id=39528201 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161017144858/http://www.panoramio.com/user/1406749?with_photo_id=46307941 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161020145804/http://www.panoramio.com/user/4678999?with_photo_id=59805727 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161023172040/http://www.panoramio.com/user/4645711?with_photo_id=68407288 operator: Panoramio described at URL: https://web.archive...