Aristotle Onassis was well known as a flamboyant Greek shipping tycoon and being a shipping tycoon means you need a fairly good personal yacht. His yacht known as the Christina was a converted 1943 built navy frigate that he purchased for $34000, as it had become surplus after WW2. After spending $4 million on it, the boat has been visited by celebrities like Marilyn Monroe, Frank Sinatra, Eva Peron, John F Kennedy and Winston Churchill and was lavishly appointed with his bar even containing whale teeth footrests and whale foreskin leather seats. After his death the Yacht was given to the Greek government for use as a presidential yacht but later fell into a state of disrepair. Today the yacht has been refurbished as a luxury charter now known as the Christina O. So if you want to sit by the mosaic floor pool that rises at the push of a button to form a dance floor, start saving up as 1 day on the boat can set you back more than what some people earn in a year.