#6 – Motor Yacht A – $323 Million
Although this yacht doesn’t sport such a unique name, what is unique about it is its design. This 400-foot yacht’s design is unique because this yacht was made on purpose to look like a hybrid between a submarine and a stealth warship.
The Motor Yacht A has a master bedroom of 2,500 square feet, a disco, and four state rooms which can be accessed via moving walls. Yes, that’s right, moving walls.