Just as Godwin's Law states that every argument approaches the mention of Nazis the longer it drags on, so too does every construction project in Berlin approach Nazi bunkers the deeper it digs. Even today, it seems like the city can't put a shovel to ground without accidentally unearthing another cement time capsule of evil from the 1940s.
For instance, while trying to build a Holocaust memorial in 1998, construction workers stumbled across Joseph Goebbles' bunker. It somehow survived devastating munitions attacks at the end of the war, was sealed up and then just...forgotten about. Goebbles, if you aren't familiar, was the man who led the political charge for Nazism as the Minister of Propaganda and was the strongest advocate of Jewish genocide, so finding his underground fortress in the exact spot dedicated to a holocaust memorial was, well, a bit awkward.
dpa via Berliner Kurier
Really though, it's hard to think of a better "fuck you" to Joseph.
But really, they're used to it by now over there. Just eight years earlier, right after the Berlin Wall came down, Germany wanted to celebrate its reunification by having Pink Floyd's Roger Waters perform The Wall: Live in Berlin, in the exact spot where the wall used to stand. But before they could build the stage, they had to sweep the area for mines since that's the kind of thing you have to do in an area that's affectionately been nicknamed the "Death Strip" for thirty years. Sure enough, while searching for munitions, workers accidentally found something much, much bigger: a secret bunker belonging to "SS Leibstandarte Adolf Hitler," Hitler's aptly named Personal Bodyguard Division. It was filled with helmets, a few weapons and huge, intricate wall murals because Hitler was, after all, an artist first and a crazy murderer second...chronologically anyway.