A work by Banksy in the rubble and snow. In mid-November Banksy, probably the most famous street artist in the world whose identity is unknown, had made it known with a video on his Instagram profile that he had created seven new murals in Ukraine. One of these shows a child knocking a man to the ground during a judo match: according to some critics the man (whose face is not visible) would represent Russian President Vladimir Putin, who was a black belt in the sport. The photo is from Tuesday 6 December. (AP Photo/Efrem Lukatsky)