A great but fairly uncommon piece of decoration. Although if you are looking to build a castle, sconces are a great option for illumination and adding a certain eerie ambiance only a torch on a wall could. The most common wall sconce is a electric wall sconce, then gas, then candle. Sconces were made to give a sort of lighting and for people walking down medieval corridors. In a more modern application sconces are used as low lighting fixtures to restaurants. This is one of few applications sconces still have in modern life, but the beauty and greatness sconces can add to a foyer or dining room are undeniable.