The superyacht where Jackie Kennedy found new love can be yours for 42 percent off

By Michael Ballaban, CNN (CNN) — To board the yacht named Christina, in the glamorous late middle of the 20th century, was to float amid the highest levels of fame, celebrity and royalty: Winston Churchill! Liza Minnelli! Rudolf Nureyev! Its owner, the Greek shipping magnate and definitive international playboy Aristotle Onassis, equipped it with a