Berlin is a wonderful city with a rich history and an absolute shit-ton of graffiti. It doesn't really matter what part of town you're in, it's everywhere. I find that charming and tried to document some of it on a recent visit.
You could say Berlin is dirty but I think 'gritty' is a better descriptor.
There are so many doorways that are completely covered. Once a few tags are laid down they multiply exponentially.
There are also a lot of anticapitalist tags to be found. This makes me cringe a bit but even I can admit Amazon is a totally fair target.