Office Europe in the paintings of artists of the 18th century. Analysis of details

This is a review of paintings dated by the Middle Ages that display a kind of apocalypse, which was not in our history. It is interesting to consider these paintings from a technical building point of view, not even from the height of a professional builder, but an ordinary person who should have questions 'What does this mean what I look at? And what did all these artists really draw?'