athena kerins leads tours for a group called berlin underworld, which explores the tunnels and passageways. so alexanderplatz would have been a ghost station, pretty eerie. what would that have been like? so, for the west berliners coming through, it would have been dark, a little bit eerie, withjust the glowing emergency exit signs, maybe a bit of light creeping in from the tunnel itself. for the east berliners, it would have been completely different, because they weren't allowed to know about this at all. if they knew that it was coming through here, they might be tempted 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 taken me to one of the world war ii bomb shelters built into the u—bahn network. oh, wow! welcome to pankstrasse. welcome to our bunker. how long would they have stayed down here? as the war progressed, and especially as the americans joined the war, the americans bombed in the day, the british bombed by night, and towards the battle of berlin, there was also

athena kerins leads tours for a group called berlin underworld, which explores the tunnels and passagewayseping in from the tunnel itself. for the east berliners, it would have been completely different, because they weren't allowed to know about this at all. if they knew that it was coming through here, they might be tempted 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 taken me to one of the world war ii bomb shelters built into the u—bahn network. oh, wow! welcome to pankstrasse. welcome to our bunker. how long would they have stayed down here? as the war progressed, and especially as the americans joined the war, the americans bombed in the day, the british bombed by night, and towards the battle of berlin, there was also street fighting. people were down here days on end. it's quite interesting because you can hear rumbling going past. you get that big rumbling, passing noise all the time. would they have been aware that this bunker was here? you mean the... the passeng