This zoo is more then just about animals.
Previous the zoo was founded in 1843 as a private park for the happy few and the rich.
Soon it grew bigger and all people could enter without being a member.
Whereas it started as a collection of exotic animals, it grew to the research and prevalation of animal species.
During Winter season you can have a guided visit in group behind the cages of the zoo and see how animals are cared for, learn about their breeding program etc.
In other seasons you can walk around the zoo, enjoy not only the animals but all the art that you can find on this little spot: architecture in all kinds of sorts, landscape architecture, paintings, sculptures...
There is a little story behind every piece you come across but it would take me too far to explain it all in here :-)
click here for official, (only Dutch and French) website.