For a major European zoo, there are still a few of the larger Cologne exhibits that are not represented in the gallery, among others the whole Clemenshof area. I'll try to complete the "collection".
Clemenshof is the children's/petting zoo of Cologne Zoo, housing all of the zoo's domestics and opened in 2014. For a children's zoo, it's relatively well-done (if you can stand some thematization), even though children's zoos probably aren't the places where most of us spend the most time.
On top of my head, the camel exhibit, the new banteng exhibit, and the waterfowl ponds. There are not exactly many photos from the aquarium/terrarium/insectarium either, but given that many of the tanks look like each other and probably rotate species regularly, I'm of course not going to upload photos of all of them.
