most expensive yachts ever built

Evidently running a global software company requires more than just one measly yacht. This time Paul Allen is back with the Octopus, a megayacht equipped with not one but two submarines.

Price: $200 million The only thing cooler than this yachts name is the fact that no one knows who owns it. While it was formerly in the hands of Roman Abramovich, it has been sold to an undisclosed buyer.

Price: $200 million Late Saudi Arabian defense minister Prince Sultan bin Abdul Aziz really upped the ante when he included an indoor pool with a glass roof on this megayacht.

Price: $200 million With 82 rooms, a basketball court, and a movie theater David Geffen, the famous media mogul, barely needs to leave his ship.

Price: $200 million Allegedly belonging to Steven Spielberg, it wouldn t be much of a surprise as this yacht is equipped with a an infinity pool whose walls double as a movie screen.

Belonging to Russian billionaire, Suleiman Kerimov, the Ice is one of the greenest yachts on the water with 8 electric generators and a built in wastewater management system.

Price: $210 million Nasser al Rashid, advisor to the Saudi royal family, takes things to a whole new level with his onboard beach. The yacht comes with a sand covered hydraulic platform that can be adjusted to sit right at the waterline.

Price: $250 million You know what they say about people with big names big yachts. Sheikh Hamad bin Jassim bin Jaber Al Thani, former Prime Minister of Qatar, owns this quarter billion dollar monster.

Price: $256 millionMet Owned by yet another Russian mafioso *ahem* sorry, businessman, this yacht is often used by Alisher Usmanov to pay visits to his private islands.

Price: $300 million Not much is known about one of the most private yachts in the world except that it s owned by Said al Said, the Sultan of Oman, and that it has a concert hall big enough to house a 50 piece orchestra.