Based on a gag by Barry Cryer heard at Edinburgh Festival:
Andropov (Soviet leader in 1980s) decided he was going to visit Poland. To mark the visit, the Communist Party Secretariat in the Kremlin decide Andropov should make a symbolic gift to the Polish communist party leader. They decide a suitable gift would be a painting entitled ‘Lenin In Poland’.
So they commissioned a famous Russian artist, Cohen, to paint the picture. Cohen says to them "But Lenin never visited Poland". "Never mind that, just get on with it" the Secratariat tell him.
Finally Cohen produces the picture. It shows a man and a woman in bed together. The Secretariat are appalled. "What on earth is that?" they demand.
Cohen explains. "The man in the bed is Trotsky. The woman in the bed is Lenin’s wife, Krupskya.’
Puzzled the Secretariat ask Cohen "And where is Lenin?’"
"Why?" says Cohen, "Lenin is in Poland!"
I like this joke I just keep smiling everytime I think of it.