It may not be the biggest, but this yacht is simply amazing.  Designed by John Shuttleworth, this 140 foot yacht was just built for Hong Kong shipping magnate Anto Marden.  It can go about 25 miles per hour and travel 4000 miles.  The yacht has a master bedroom quarters, two additional rooms and rooms for the 6 crew members. To top it off, he can control it all from his iPad.

Check out more via John-Shuttleworth.com