This $300 million yacht belongs to Andrey Melnichenko and it is completely out of this world. Designed by Philippe Starck, it is a massive 394-foot long (119 m) and has a gorgeous interior with a glass fronted swimming pool, a Jacuzzi, a bridge deck at the spa and wellness area and a heliport. Many of the rooms have revolving beds and freestanding mirrors and the boat can sleep 14 guests with space for an additional 37 crew and 5 staff members.