'Christina O' is not just a luxury yacht but is the palatial setting where Greek billionaire shipping tycoon Aristotle Onassis married Jackie Kennedy, the former wife of US President John F Kennedy.
Now the vessel which played host to the creme de la creme of 1950s high society -- including Frank Sinatra, Marilyn Monroe, Elizabeth Taylor, Richard Burton and John Wayne -- has gone on sale for USD 32 million, CNN reported.
Known for its lavish parties, the elegant ship may well be called the "Love Boat," for its notorious on board romances -- and even a royal wedding, it said.
Onassis' own love affair with opera singer Maria Callas also played out on board, as they cruised exotic locations across Europe in the company of Hollywood stars Greta Garbo, Bette Davis and Margot Fonteyne.
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However, the affair ended abruptly when the tycoon courted Kennedy's widow, Jackie, later marrying on the very same yacht in 1968, near his private island of Scorpios.
"Aristotle Onassis saw Christina O as a powerful symbol of his growing business empire," said Nicholas Edmiston, chairman of the yacht company Edmiston, which plans to sell the vessel mid-August.
It's been quite a journey for the boat which began life in 1943 as a World War II surplus Canadian frigate.
A decade later, Onassis bought the boat for just USD 34,000, gutting the interior and spending USD 4 million -- the equivalent of USD 45 million today -- converting her into one of the luxurious super-yachts in the world.
In 1975, Onassis died and the yacht was left to his daughter, Christina, in his will. She in turn bequeathed it to the Greek government as a presidential yacht.