The zoo in the former East Berlin is more spacious than its West Berlin counterpart, the historic Berlin Zoo and has been open for some 50 years. The Tierpark has nearly as many animals, but fewer reptiles and aquatic animals. It appears rather like a park with animals than a classic zoo, in fact it is one of the biggest zoos in Europe. There is an old castle from the late 17th century in the northeast of the Tierpark (Schloss Friedrichsfelde).