When you think of a castle, you usually think of lavish amenities and grand-scale poshness, but who cares how big the barn is, when its still slathered in mud and smells like horse manure. Similarly, Castles were often poorly lit (the sun came through tiny slits for windows); they were damp; and they had poor air circulation (think of all they body heat circling around the place). After all castles were build primarily for defense; creature comforts were on the back-burner. Eventually however, castles came to be outfitted with pretty rugs and artful stained-glass windows as somebody had the bright idea to make these things livable, and to have the interior be a reflection of wealth as well as the exterior.