Length: 508 feet
Top speed: 25 knots
Total power: 21,992 hp
Another royal super yacht makes the list. The Al Said, owned by the sultan of Oman, features six decks and a concert room capable of accommodating a 50-piece orchestra. At its widest point, the ship measures nearly 79 feet across.
The Al Said was completed in 2008 and was designed by Espen Oeino International. The yacht can accommodate 70 guests and 154 professional crewmembers.