"I know what gold does to men's souls." - Howard (the old prospector) in The Treasure of the Sierra Madre
They call it "gold fever," and it has induced dozens and dozens of dashed dreams for every life-changing strike. But still the fever rages.
And why not?
That precious metal has been lying there for millennia, just waiting to be found and transformed into mansions and yachts and private jets for those bold (and lucky) enough to dig it up.
If you're of a mind to give it a try, what follows are our choices for your most interesting - and maybe, just maybe, lucrative - options.