Editor's note: It holds a key economic role and has long been a symbol of wealth and power. However, gold also has its place in the language: to have “a heart of gold” is to be a caring person who helps others; a child who is “as good as gold” is perfectly behaved; and of course we want to avoid “gold-diggers,” or romantic partners who are only after our money. Express your affinity for this noble metal with some lustrous Gold wallpapers!