In the E&I concert Bono talks about their time in Berlin recording Achtung Baby at Hansa studios , Zoo station being from that album and described it as a difficult time when they “fell out of love with the U2 project” (could they have broken up even ?!) but came up with the song One , which they “really, really, really needed to hear “.
At first I thought Berlin had named that train station in honour of the U2 song (see screenshot attached of the song being performed on the DVD, Zoo station). But it was actually the station that inspired the song title. The station is next to Be