- the-passenger.de 2017/10/21/koelner-zoo/The zoological garden of Köln, Germany dates back to the year 1860 and is therefore the third oldest zoo in Germany.
- liquisearch.com cologne_zoological_gardenThe Aktiengesellschaft Cologne Zoological Garden is the zoo of Cologne, Germany. It features over 7,000 animals of more than 700 species on more than 20...Bulunamadı: köln
- worddisk.com wiki/Cologne_Zoological_Garden/This article needs additional citations for verification. (November 2022). Cologne Zoological Garden Zoologischer Garten Köln.
- 3pulse.com en/sights/cologne-zoological-gardensPhotos of zoo Cologne Zoological Gardens. Von Doppelklecks - Eigenes Werk, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=39222385.
- wikijtr.icu wiki/Cologne_Zoological_Garden20 Haziran 1930 tarihinde yayınlanan Köln Zoolojik Bahçesi Payı. Aktiengesellschaft Köln Zoolojik Bahçesi ... hayvanat bahçesi nın-nin Kolonya, Almanya.
- google.pl travel/entity/key/…Cologne Zoological Garden. Riehler Str. 173, 50735 Köln, Niemcy•+49 221 56799100.
- commons.wikimedia.org wiki/Category:Cologne_ZooKöln; Koelner Zoo; Zoo Köln; Zoo Koln; Dierentuin van Keulen; Kolner Zoo</nowiki>. Cologne Zoological Garden.
- tr.mgwiki.top wiki/Cologne_Zoological_Garden20 Haziran 1930 tarihinde yayınlanan Köln Zoolojik Bahçesi Payı. Aktiengesellschaft Köln Zoolojik Bahçesi ... hayvanat bahçesi nın-nin Kolonya, Almanya.