I'm in malta and was around with a friend, we were talking about Bitcoin and all of the sudden I saw this from far
I couldn't believe my eyes.
I am looking at it from a different angle that what is the purpose of this banner over the wall just written "Bitcoin" over it, no other advertisement of anything on the banner. I couldn't believe my eyes.
Might be this would be a part of any bitcoin campaign like awareness program or events by local community over there, as OP is stating of some recent events about bitcoin held there.