A beautifully-illustrated cave interior from Glitch (glitchthegame.com). It's a slightly edited version of an SVG file I found at github.com/ChildrenOfUr/coU-decos/tree/master/_svg.資料來源：openclipart ( https://openclipart.org/ )
From a drawing in 'The Ancestral Homes of Britain; containing examples of its noblest castles, halls, and mansions', Francis Morris, 1868.資料來源：openclipart ( https://openclipart.org/ )
