Treptow-Köpenick is the ninth borough of Berlin, Germany, formed in Berlin's 2001 administrative reform by merging the former boroughs of Treptow and Köpenick.
Wikipedia https://en.wikipedia.org/wiki/Treptow-Köpenick
Official Website http://www.berlin.de/ba-treptow-koepenick/
Coordinates 52°25'4.415" N 13°36'0.665" E