Made of solid gold, The History Supreme, is the most expensive yacht in the world and is reportedly owned by Malaysia's richest man, Robert Knok. It took 3 years for the 100 feet long yacht to have been built, using 10,000 kilograms of solid gold and platinum and is designed by the renowned luxury designer from the UK, Stuart Hughes.  The gold and platinum adorn the yacht from its base to the dining area, deck, rails, staircase and anchor. The most extravagant aspect of the luxury yacht is its master bedroom that with a wall feature made from meteorite rock and a statue made from genuine Tyrannosaurus Rex bones. The master suite is adorned with a 68 kg 24-carat gold Aquavista Panoramic Wall Aquarium and a liquor bottle featuring a rare 18.5 carat diamond. 

The second largest yacht in the world, Eclipse, is owned by Russian billionaire Roman Abramovich. Besides having an intruder detection system missile detection system, the yacht features 2 helipads, 24 guest cabins, a disco hall, two swimming pools and hot tubs. It has been built by Blohm and Voss of Germany and designed by Terence Disdale.  The 533 feet long yacht also has mini-submarine that is capable of submerging upto 50 metres underwater. The master bedroom and the bridge of the yacht are fitted with armour plating and bulletproof windows. The yacht also features an anti-paparazzi shield which consists of lasers sweeping the surrounding areas. 

Featuring miniatures of the renowned landmarks of Monaco like Monte Carlo Casino, Hotel de Paris, Ca Rascasse and a beach like swimming pool, Streets of Monaco, is a 500 feet long yacht and can be described as a floating city. The exteriors of it have been designed by Opulent Yacht, while the interiors have been done by Filthy Rich Boaters.  The luxurious suite that the yacht has on offer is spread over three floors and features a private elevator, an office, a living room, balconies and sundecks with jacuzzis. Besides this, it also consists of seven guest suites with reception rooms, bathrooms, dressing rooms, and balconies attached to them. The yacht also features barbecue facility, a mini waterfall, a gorgeous cafe-bar that provides an underwater view, helicopters and submarines.

Rumored to be owned by a member of the royal family of the UAE,  Azzam, according to its makers is the most complex and challenging yacht to have ever been made.  The 590 feet long yacht is said to be one of the fastest with a speed of 35 kmph. French interior decorator Christophe Leoni has designed the sophisticated interiors, while the exteriors of it have been designed by Nauta Yacht. It features two gas turbines and two diesel engines with a total power of 35048 kW and is capable of travelling at high speed in both warm and shallow water. 

Reportedly owned by Russian tycoon Andrey Melnichenko, the luxury yacht of Motor Yacht A, is reminiscent of a stealth warship or submarine and has been constructed by Architect Martin Francis and designed by Philippe Stark. It has been built by Blohm and Voss shipyard in Kiel and can accommodate 14 guests and 42 crew members.   The interiors of the 400 feet long yacht extend over 24,000 sqft and feature a 2,500 sqft master bedroom and disco,  along with six guest suites, that have moving walls in order to convert them into four large staterooms. Mirrored surfaces adorning the interiors and furniture, glassware and tableware made of French crystal, add to the luxury aspect of the yacht. It also features a helicopter hanger, a 30 feet speedboat as well as 3 swimming pool, one of them being glass bottomed and situated directly above the disco which the yacht has on offer.