My photo depicts a street art next to STAIRS leading to an underground passage. The GRAFFITI is quite fitting, as it portrays a tram (and what's the difference between the RAILROAD for a tram and one for a train?...)

The passage must have been a scene for real artists, as there are more paintings like this there. Too bad other "painters" don't appreciate the art and leave their own - not so artful - marks on the walls...

STAIRS + RAILROAD = GRAFFITI