Saudi Arabian Gold Rush
As it turns out, Saudi Arabia may have not one of the world's most lucrative resources (duh, oil) but two. Recent prospectors have set their sights on Saudi Arabian sands to dig for gold in addition to other precious metals. The first commercial prospector allowed to set up mines in Saudi Arabia is Ma'aden, which has already invested $5.5 billion in equipment and development costs. When it comes to digging for financial rewards, who knew sand could be so fertile?