Carceri d'invenzione (Imaginary prisons) by GB Piranesi was first published in 1750 and represents a landmark in the modern view of the world, influencing both Romanticism and Surrealism, with drawings of enormous, dark spaces, "the scenery of his own visions during the delirium of a fever ... vast Gothic halls, on the floor of which stood all sorts of engines and machinery, wheels, cables, pulleys, levers, catapults, etc., etc., expressive of enormous power put forth, and resistance overcome", as Thomas De Quincey wrote in Confessions of an English Opium-Eater.
While it is pointless to try to replicate Piranesi's visions, I try here to capture the feelings he conveys: fear, anguish, bewilderment, confinement, darkness, ,...
Needless to say, the places in this homage-in-progress to a great master are not prisons at all.