Andrey Melnichenko | A

Another wealthy Russian graces our list. Andrey Melnichenko is one of the richest people in the world and he is a board member of two companies, and he owns a superyacht called A. The boat is 400 feet long and has room for up to 14 guests who can sleep in its six suites.

The rooms can also be transformed into staterooms when needed. When used as a bedroom, the rooms are equipped with king-sized beds that have the machinery to change angles according to which view the guests want to see. Three swimming pools are also found aboard A. The one at the very bottom has a glass floor so that the passengers can see the marine life underneath. Melnichenko probably got his team who installed his home security system to work on his boat as well because its security is just as top-notch.