Any chances, might be some castle or some forts ruins happend? Something alike these?
(https://vignette.wikia.nocookie.net/witcher/images/1/10/Tw3_tesham_mutna_ruins.jpg/revision/latest?cb=20180414042536)
(https://vignette.wikia.nocookie.net/witcher/images/e/e5/Tw3_fort_astre_ruins.jpg/revision/latest?cb=20180225040627)
(https://vignette.wikia.nocookie.net/witcher/images/6/6a/Tw3_mont_crane_castle.jpg/revision/latest?cb=20180304011100)
Like ruined walls, towers etc.