Kettenbrückengasse is a station on U4 of the Vienna U-Bahn. It is located in the Margareten District. It opened on the Wiener Stadtbahn in 1899 and became an U-Bahn station in 1980.
Wikipedia https://en.wikipedia.org/wiki/Kettenbrückengasse_station
Address 47/1 Rechte Wienzeile, Wien 1050, Austria
Coordinates 48°11'47.878" N 16°21'29.131" E