The zoological garden of Magdeburg, Germany is home to 1200 animals of 190 different species. If is located in the north of the city and can be reached by tramway or S-Bahn (Magdeburg-Eichweiler). It is a middle-sized zoo which needs a lot of investments and I tend to say there a not so many special things that make it worth for a longer travel time.
But in fact there are some areas that have been beautifully renovated and I enjoyed the Madagascar area where you can walk in between ring-tailed lemurs getting quite close.
Zoologischer Garten Magdeburg