larry ellison musashi yacht
When it comes to buying a yacht, bigger is always better.
Megayachts belonging to tech billionaires like Larry Ellison, Mark Cuban, and Paul Allen are among the biggest privately owned boats in the world. 
They have some pretty out-of-this-world features, too. One even has a special deck that can be transformed into a nightclub, while others have multiple helicopter landing pads and submarines nestled inside.
We've ranked the biggest yachts owned by executives in tech.