$4.8 billion: The History Supreme is made from solid gold and is the most expensive yacht in the world. It reportedly sold to a Malaysian businessman in 2011.

Either way, it's sure fun to look! Below, we explore nine of the most expensive yacht companies that cater to the world's wealthiest individuals, so you can get some ideas for your daydreams or ...

The Admiral X Force 145 is not your everyday mega-yacht. The 465-foot vessel takes luxury to eye-popping new heights. Not only is the yet-to-be-built boat huge; its lavish interiors are punctuated ...