During the Cold War, there was no vast, top-secret bunker complex bored into the hillside 500m up the slope from the Museum Roemervilla – at least not officially. Now, however, you can see the truth at a 200m section of the nuclear-proof former ‘Emergency Seat of the Constitutional Organs of the Federal Republic of Germany’. There's a real Dr Strangelove quality to what comforts the bureaucrats thought would be good to have at hand as the world ended.