Archimedes, a super yacht, was built in 2008 by Feadship in Kaag, the Netherlands. It is 67.7 meters or 222'3" feet. (that's big) It is owned by James Simons who is the founder of a hedge fund management company named Renaissance Technologies in 1982 (what else?) with over 20 Billion USD of assets under management. Apparently he is quite the philanthropist founding a couple of foundations.