Christie's, the world's leading art business, offers fine art auctions for post-war contemporary, impressionist and modern paintings, fine wine, watches, jewelry, prints, old masters, and interiors from artists as Andy Warhol, Claude Monet, Jeff Koons, and Francis Bacon in which you can view, register, bid and buy online.Christie?s, the world's leading art business, offers fine art auctions for post-war contemporary, impressionist and modern paintings, fine wine, watches, jewelry, prints, old masters, and interiors from artists as Andy Warhol, Claude Monet, Jeff Koons, and Francis Bacon in which you can view, register, bid and buy online.