in time to a later shelter, a symptom of berlin's position on the fault line of the historic tensions between east and west. so this is the bunker, or there is a bunker nearby? there's actually — we're in the bunker already, because this entire station is the bunker. it was originally opened in 1977 to a multipurpose facility. so it's both a train station, as you just saw, but also, in a 48—hour preparation period, it can be turned into an atomic fallout shelter. so this is some of our many, many dormitories. a big luxury here is that we actually all get our own bed, which is not standard for bunkers like this. we have several dormitories, but on top of that, about 2,000 people would have to be sleeping on the train platform itself.