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

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 ...

Each year, Sotheby’s and Christie’s, the top auction houses in the country, put culturally significant blue-chip art from precious art collections up for sale. This year, both auctions took place in ...