One can only imagine how John F. Kennedy, who would have turned 100 Monday, would celebrate his centennial year on the planet. But if his final birthday bash in 1963 is any indication, it would surely be going down in style. JFK partied down aboard a 104-foot yacht with a glamorous but intimate group of family and friends, reports the Washington Post, in an opulent 46th birthday bash. The president spent the evening pursuing one of his romantic interests, dining on French cuisine, and toasting bottles of Dom Pérignon. More on Kennedy’s birthday anniversary: