Note that this post from The Before Times may contain LLM-generated
images.
Mediaeval gigafactories (of the high gothic style) (defunct).
A towering, ruined gothic-arched wall extending out of frame vertically, and into brightly backlit mist to the left of frame.A large, bulky factory building apparently composed of stone, rebar and wire frames. Its arched architecture has fallen into ruin.A large stone wall of repeating, empty, arched doorways and windows, ending in something that could either be a tower or a huge smokestack. Set in a forest, covered in lichen.A huge wall of very high, narrow, pointed archways, clearly very old and stained. It is ambiguous if they are glazed and showing reflections or if there is an even larger structure behind them, half-hidden in fog.