Built as an escort frigate for American convoys during World War II (1943), Christina O is the largest North American built yacht. The famous shipping tycoon Aristotle Onassis then bought the gull and converted her into Christina, one of the most iconic yachts of the century. Used to entertain the elite such as Winston Churchill, she was completely rebuilt in Croatia in 2001.She was then built by an Irish bank teamed up with Greek investors renaming her Christina O. The yacht has a length of 99.14m with a beam of 10.9m and a draft of 4.2m. The yacht can reach a maximum speed of 19.5 knots and cruise at 16 knots. She is often seen in Monaco.