The $4.8 billion History Supreme, owned by Robert Knok, is the world's most expensive and largest superyacht. History Supreme, which is 100 feet long, took three years to build and used 10,000 kg of solid gold and platinum, both of which adorn the dining area, deck, railings, staircases, and anchor. If that isn't enough, the master suite also has a meteorite rock wall, a Tyrannosaurus Rex bone statue, a 68 kilogram 24-carat gold Aquavista Panoramic Wall Aquarium, and a liquor bottle encrusted with a rare 18.5-carat diamond. ¹⁾

The Russian billionaire Roman Abramovich owns the world's second-largest luxury boat. The Eclipse has two helipads, 24 guest cabins, two swimming pools, a dance hall, hot tubs, a mini-submarine, armor plating, bulletproof windows, and an anti-paparazzi shield with sweeping laser beams. Abramovich paid $1.5 billion on the 533-foot yacht, which was built by Blohm & Voss and designed by Terence Disdale. ²⁾