5. Dubai – $350 million
It was formerly known as Platinum 525 and its construction was ordered in 1996 by Brunei’s Prince Jefri Bolkiah. The project was unfortunately stopped until it was ordered again by Sheikh Mohammed Bin Rashid Al Maktoum who is the UAE Prime Minister. The yacht was called before as the largest super yacht in the world as it is 525 feet. It features many amenities that allow you to spend a luxurious life and enjoy your time as you can find a swimming pool, spa, booths for spa, helipad, glass staircase and other amenities that make this yacht called the floating city.