Dunstall Castle is an 18th-century folly ruin designed as an ornamental eyecatcher for the 6th Earl of Coventry's estate at Croome Court near Worcester. Built between 1750-1766, the structure features a central round tower flanked by canted walls terminated in smaller towers, with Gothic windows and ruined stonework creating a picturesque romantic composition. Attributed to architect Sanderson Miller or possibly Robert Adam, this Grade II* listed building exemplifies the 18th-century fashion for artificial ruins as landscape ornaments, offering visitors a glimpse of period aesthetics and architectural innovation.