With a lot of money, you can afford to indulge your extra money in some "toys"! One of the very common "toys" of the wealthy is the yacht. Yachts can be categorized as personal cruise ships. The owner can travel on the water and be on their private island, depending on the amenities that can be installed. Even better, they can bring their friends along to participate in the fun.

However, there is a small tier of people that have so much wealth that they can indulge in unheard extravagance. The cost of their yachts goes into the billions and we are here to expose it all. Here are ten of the most absurdly expensive private yachts (and the lucky ducks who own them!)

10 Robert Knok: History Supreme ($4.8 Billion)

This is the world's most expensive yacht! Don't believe us? Designed by Stuart Hughes, it's made out of solid gold and platinum! It belongs to Robert Knok, the richest man in Malaysia. The master bedroom is the pièce de résistance, containing a statue made out of real T-Rex bones!

9 Roman Abramovich: Eclipse ($1.5 Billion)

Russian billionaire, Roman Abramovich made his yacht a virtual fortress. Not only does it have an intruder and missile detection system, but there is a disco hall, swimming pools, and two helipads! Anti-paparazzi shields keep prying eyes out and, if anyone gets bored, they can hop on its mini-submarine.

8 Streets Of Monaco ($1.1 Billion)

Ever wanted to take your favorite city onto the water? Check out the Streets of Monaco yacht. Why? Over three floors, the boat has many landmarks of Monaco, including the Monte Carlo Casino, Hotel Paris and Ca Rascasse. You can even get an under-water view while indulging at its cafe-bar.

7 UAE Royalty: Azzam ($600 Million)

Its owner is unclear but, whoever they are, they need speed! On top of being one of the most challenging yachts to ever design, the yacht can go up to 35 mph of its dual diesel engines with a combined power of 35048 KW.

6 Andrey Melnichenko: Motor Yacht A ($440 Million)

This yacht has the intimidating design of a war submarine combined with the luxury of the 1%! Not only are there six guest suites and a disco, but those suites have moving walls! There is a glass-bottomed pool directly above the disco, and many aspects of the boat are made of French crystal.

5 UAE Royalty Part II: Dubai ($440 Million)

No, not the country! This yacht (also rumored to be owned by royalty) can host 155 guests.  The boat has a swimming pool, multiple jacuzzis, and a sunbathing area. The interior of the boat is colorful and, if you have some of your guests are important, usher them to the VIP areas. Enjoy!

4 Oman Royalty (Alright Already!): Al Said ($300 Million)

Yes, we get it! Monarchies can afford extravagant yachts. And this one is no different! Not only can it go very fast (up to 47 mph to be exact), it has a concert hall that can hold a 50-piece orchestra. Talk about a view and a show!

Related: 20 Photos Of The Kardashians Partying On Yachts

3 Alisher Usmanov: Dilbar ($256 Million)

This yacht is the proud property of Alisher Usmanov, the Russian billionaire. The boat has a steel hull and aluminum structure which makes it solid and difficult to penetrate. The pool aboard the ship is considered as the largest superyacht pool. It even has two helipads to boot!

Related: Beyonce And Jay-Z (And 19 Other Celebs Captured On Yachts)

2 Hamad bin Jassim bin Jaber Al Thani: Al Mirqab ($250 Million)

This yacht is so awe-inspiring that it won the Motor Yacht of the Year award in 2009. The ship has it all: sunbathing areas, bars, jacuzzis, and even a movie theater! If that's not enough, guests have an assortment of watersports equipment to choose from. Quite the award-winning experience!

Related: 10 Celebs Who Only Travel With Yachts (10 Who Choose To Stick To The Beach)

1 Nasser Al Rashid: Lady Moura ($210 Million)

This yacht has a gold plated exterior, as well as its moniker on the front made from 24-carat gold. What's so amazing about this yacht is that it comes with its beach! This sand-covered platform can be retracted and adjusted so that guests get a real beach experience while aboard.

Next: 25 Things That Show That Yachts Are Completely Overrated