U3 (Nuremberg U-Bahn) · Relations URL: https://knowledge.ivjn.us/en/concepts/ubahn-nuernberg-u3/relation.html The U3 is the youngest line of the Nuremberg U-Bahn at 9.2 km with 14 stations; it opened on 14 June 2008 as Germany's first fully automatic U-Bahn and runs from Nordwestring to Großreuth bei Schweinau. Page 1 / 0, 0 total