20. Steven Spielberg – Seven Seas

Steven Spielberg’s 282-feet yacht is another one of the biggest we’ve seen on this list, and it’s basically his own private island. Although it cost him $184 million, it sure seems worth it for all the amenities it comes with. They include: a pool, spa and massage center, a 15-foot high movie screen, and a helicopter pad. For those who want to get some exercise, there’s the infinity pool for a swimming session or the gym for a good workout. The Seven Seas is also equipped with everything one would need for their water sport of choice, including snorkeling, kayaking, and so much more.