Berlin's culture is proudly post-national, cosmopolitan, and bohemian - a place that doesn't care where you come from, and doesn't ask, you're accepted simply for partaking in the low-rent offbeat way of life that's on offer here.
Of course that's all theory and reality is much less rosy with many more shades of gray. But even having that self image is already half the battle. And no other city in Germany has such a self-image, except maybe Hamburg to some degree.
