Paulsternstrasse
I have been fascinated by the graphic tilework in the Berlin Ubahn for quite some time now - each station can be completely recognizable on its own. I spent some of the beginning of 2012 vectorizing my favorites, and while I loved the final result, I never knew what to do with them so I put them to the side and forgot about them. Over a year later, while organizing my laptop, I found the "Ubahn ai" folder once again on my messy desktop, just staring at me, asking to be shared.
See if you can identify these patterns that you probably see in your daily commutes.