Key facts about John McCain:   * Republican nominee for the 2008 US presidential election.  * Has an IQ of 133  * Almost flunked out of the Naval Academy, graduating in tâ¦he bottom 0.5% of his class.
$4.8 BILLION: The History Supreme was made with solid gold and is the most expensive yacht in the world. It was reportedly sold to an anonymous Malaysian businessman in 2011. It comes with a glass-covered atrium for dining.
Even among billionaire megayacht owners, thereâs competition to be the biggest and best. In celebration of the Monaco Yacht Show, which kicks off Wednesday, our friends at Wealth-X shared the estimated values of the 10 most expensive yachts on the planet. From a movie mogulâs secondhand yacht to a futuristic design by Philippe Starck, these boats are like small cities on water.