Europe's largest zoo, if you like going to the zoo, then make sure you go to this one.  They have every type of animal you could imagine and many people come from all over Europe for this one so it can get congested at times especially over the summer week-ends.  I've been here twice with the wife and kids and we really enjoyed the day out.  The staff are very helpful and will go out of their way to make your visit a pleasant one.