If a beautiful antique quilt is showing wear and it would be too delicate to use on a bed, it can be used as wall art - there are various methods to display a quilt on a wall, one simple way is by hanging the quilt over a narrow brass cafe style curtain rod - these photos show one displayed in a USA museum. This way you can display the quilt and appreciate the piecing and quilting close up. Remember to hang on a wall out of direct sunlight otherwise further fabric deterioration will occur, and re-hang on a different fold line every few weeks to lessen any strain on the fabrics.
This works best on a thin thickness quilt as the rods are narrow, leaving a small amount of space behind them and also might bend under the weight of a heavy quilt. If the quilt is hung in a busy area such as on a landing near a flight of stairs, a second rod fixed lower down can be used to ensure the quilt is kept safely out of the way.
Thicker quilts, or comforters always look great hung over a quilt rack, or here in the UK, a towel rack is very similar!