U1 (Vienna U-Bahn)

Line U1 is a line on the Vienna U-Bahn metro system. Opened in 1978, it currently has 24 stations and a total length of 19.3 km (12.0 mi), from Oberlaa to Leopoldau. When the extension to Oberlaa was completed in 2017, the line became the longest on the network, surpassing the length of Line U6. The line is connected to Line U2 at Karlsplatz and Praterstern, Line U3 at Stephansplatz, Line U4 at Karlsplatz and Schwedenplatz.

U1 (Vienna U-Bahn)

Line U1 is a line on the Vienna U-Bahn metro system. Opened in 1978, it currently has 24 stations and a total length of 19.3 km (12.0 mi), from Oberlaa to Leopoldau. When the extension to Oberlaa was completed in 2017, the line became the longest on the network, surpassing the length of Line U6. The line is connected to Line U2 at Karlsplatz and Praterstern, Line U3 at Stephansplatz, Line U4 at Karlsplatz and Schwedenplatz.