Tripadvisor - Dusseldorf U-Bahn Station “Heinrich-Heine-Allee” (3rd stop). At the U-Bahn station, we followed “Altstadt” exit. Upon coming up to the street level, we turned around and followed “Heinrich-Heine-Allee” street signs -
U-Bahnhof Heinrich-Heine-Allee – Wikipedia
BAUWELT - Station Heinrich-Heine-Allee in Düsseldorf