. "underground (metro)" . . . . . . "metro" . . "Vienna U-Bahn" . . "1978-02-25" . "U-Bahn station" . "U-Bahn 6 line station" . . . . . "Vienna Underground Railway (

)" . "32.5" . . "Vienna U-Bahn" . . "the Metro" . . . "1300000" . "98" . "underground line U2" . . "metro line 4 (the U4)" . . "Vienna" . . "underground railway" . "T-Class" . "U4" . . "U6" . . . . . . . . "U1" . "U-Bahn" . "85.0" . "U-Bahn network" . . "1976-05-08" . . . . . "U3" . "U-Bahn system" . . "U2" . "1976" . . "subway" . . . "Vienna metro" . "778" . . . "4598" . . "Rathaus" . "Vienna U-Bahn#Fifth expansion phase: Extension of U2 and U5" . "Vienna's subway system" . . . . "1978" .