Some screenshots of a project from earlier this year inspired by Giovanni Piranesi's 'Imaginary Prison' etchings. Don't know if the end result was particularly successful but I do think there's potential that I'd like to revisit. The idea of having a procedural approach to these massive and endless spaces made up of smaller modular ruins. At the time I was reading a lot of Borges and trying to evoke something from the original etchings. The idea of being lost in a place unmoored from space and time (perhaps blending in some elements from this aesthetic ballpark: https://cari.institute/aesthetics/pomo-faux-ruins).
Did some very early experimentation with UE5, this sort of thing makes good use of Nanite, much of the stonework and wood beams were re-topoed Megascan. As many have noted, the real power of that system, at least in the short term, isn't ultra-high poly meshes (which can be difficult to work with and to iterate with) but rather the ability to use a ton of mid-res meshes without having to worry as much about light baking and LOD creation.