they were manned, guarded — you definitelyjust could not get off. dog barks athena kerins leads tours for a group called berlin underworlds, which explores the tunnels and passageways underneath the city. so, alexanderplatz would have been a ghost station. really eerie. what would that have been like? so, for the west berliners coming through, it would have been dark, a little bit eerie. just the glowing emergency exit signs, maybe a bit of light creeping in from the tunnels itself. for the east berliners, it would've been completely different because they weren't allowed to know about this at all because if they knew that it was coming through here, they might be tempted to try to get into the train station or the tunnels and use them to escape. but even before those 28 years of division, the tunnels down here harboured secrets. athena's taking me to one of the world war ii bomb