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Photo: KleinerWeltenbummler, CC BY-SA 3.0 via Wikimedia Commons
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).
The Tierpark Berlin is one of two zoos located in Berlin, Germany. It was founded in 1955 and is located in Friedrichsfelde on the former grounds of Friedrichsfelde Palace, which is situated within the zoo. As of 31 December 2013, the zoo houses 7,250 animals from 846 species, in an area of 160 hectares. Tierpark Berlin also features two public exhibits free of charge, one being the Bärenschaufenster for American black bears. The park is also home to the Treskow family's historic family burial ground.
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German-Russian Museum
In this house the surrender of Germany was signed on May 9th, 1945, ending WWII in Europe. This museum describes the history of the war between Germany and the Soviet Union between 1941 and 1945 and the GDR/German-Russian relationship ever since. Historic rooms, permanent exhibition and special exhibits.
A small castle in late classical style. It was built 1868 by Martin Gropius (uncle of the Bauhaus-founder and other architects, the von Siemens family changed the castle a bit around 1900 and they enlarged the dimensions of the park, which is today renovated and nice to wander around when the sun is shining. Located within a few minutes' walking distance from Biesdorf station (take the S5 from the city centre) or Elsterwerdaer Platz station (U5).
Friedrichsfelde Central Cemetery
The cemetery is also known as the Memorial to the Socialists. It has many interesting monuments and graves of known people.
There is a harness racing track in Karlshorst.
This museum describes the procedures applied by the East German secret police. Every Friday to Monday, there is a guided tour in English at 15:00 (5€).
A relatively well and completely retained (at least by Berlin standards) 19th century residential quarter. Partly under renovation. Of note are six buildings first (1875) built of concrete - but you can't make out a difference from the outside.