From billion-dollar yachts to diamond watches and rare art, explore 15 of the most expensive things ever purchased by the ...

Add Yahoo as a preferred source to see more of our stories on Google. It's no secret that you need money to make movies. The '90s were the golden age of independent filmmaking, but the 21st century ...

A long-held lesson of economics is that the value of an item is what someone is willing to pay for it. Still, when it comes to auctions, that concept only partially explains the astronomical prices ...