A weird situation with a chance TheGermans make it way worse by surpriseing the world with having had stored for security purposes their own yet quite illegal nuclear bomb, that hopefully turns into a realy, really extremely bad joke.
So, what would be the most stupid place to store one!
Historic V1 and V2 research centers, Technisches Museum Berlin (exactly a secret place hidden in plain sight), Bavarian Hofbräu Haus in Munich...