10 multi-million-dollar mega-yachts

These folks definitely do not need a bigger boat. Peek inside some of the swankiest vessels on the high seas.

Owner: Paul Allen, Co-founder Microsoft
Estimated Cost: $200 million

This 414-foot yacht even has its own Wikipedia page. The Octopus is large enough to hold two helicopters, a pool, and seven boats. Upkeep for the luxury boat isn't cheap. Billionaire Allen reportedly spends $20 million each year to staff and maintain Octopus' facilities.

By Sierra Jiminez, reporter @FortuneMagazine - Last updated May 25 2012: 9:48 AM ET
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