Crucifixion

On the first look it seems to be a normal religious painting, a crucifixion. But after a few seconds you will notice the other crosses more in the back. And maybe then you will remember that you have heard of slave revolts in Rome - probably you have seen the film Spartacus! So the tortured slaves (the working class) take here the place of Christ.

The Damned Field, Execution place in the Roman Empire (1878) by the Russian painter Fyodor Andreyevich Bronnikov (1827-1902).