I figured I'd make a thread where I (or anyone else who wants to) can show off cool photos of various metro systems. I'll start with some cool tile/paint schemes from Berlin:
Franz-Neumann-Platz (U8)
Paracelsus-Bad (U8)
Jungfernheide (U7)
Paulsternstrasse (U7)
If there's a moral here it's...