I’ll offer Freiburg as one of Europe’s most colourful tram cities.
The combination of variety of cars, a range of paint liveries (advertising and otherwise), interesting trackage plus varied and interesting historic backdrops makes Freiburg hard to top.
Any suggested contenders?
Photos below exposed in April 2016 using my FujiFilm X-T1 digital camera.
That low-level picture with the little stream flowing along the street is a gem. Just think of the scope for Irish people to fall into it, claim huge compensation, or perhaps even drown! Over there “The difference must be they’re German”, to adapt a well-known supermarket’s slogan.