See List Of World’s Most Expensive Yachts

 The Yacht was originally a lightweight Dutch naval vessel used to pursue pirates in shallow waters. When King Charles II chose to sail in one on his return to England in what would
later be known as the English Restoration, the Yacht became a symbol of important and, eventually, wealth and luxury.

Today, that tradition is still quite alive and nothing demonstrates that fact better than the most expensive yachts in the world.

Eclipse – $1.2 billion

Russian billionaire and Chelsea football club owner Roman Abramovich's super-yacht will be a 560-foot monster requiring a minimum of 70 crewmembers and featuring eleven guests. Abramovich and his guests will be protected by a security system that uses laser bursts to foil digital paparazzi photography when activated, anti-bugging and anti-intruder systems and a missile detection system.

They'll also enjoy a swimming pool that can be drained and used as a dance floor, an additional swimming pool and an aquarium. The yacht holds two helicopters, three boats and a submarine.

Streets of Monaco – $1.1 billion

The amazing Streets of Monaco yacht will not only rival Roman Abramovich's Eclipse (below) in price, but also in sheer audacity. Rather than being the largest or most secure yacht in the world, Monaco will feature scaled-down reproductions of landmarks from its namesake city-state.

This 500-foot yacht will feature a go-kart track on deck inspired by the Monaco Grand Prix, as well as reproductions of the Hotel de Paris, La Rascasse and the Loews Hotel. It's being designed by Yacht Island Design of Derbyshire County in England and will accommodate 16 guests and 70 crewmembers. For the owner, a 4,800-square-foot suite with three floors is planned.

 Dubai – $350 million

This costly yacht has gone by three names since its conception—Platinum 525, Golden Star and, most recently, Dubai. The Platinum 525 was commissioned by Prince Jefri Bolkiah of Brunei in 1996, but a lack of funds caused the project to be abandoned a scant couple of years later. In 2001, Sheikh Mohammed bin Rashid Al Maktoum, then Crown Prince and now ruler of Dubai, took over the project and renamed it the Golden Star.

Dubai is as expansive as it is expensive. The 525-foot yacht features an owner's suite, five VIP suites and a number of guest bedrooms. The bridge features the captain's quarters, an office and a lounge. The foyer and atrium connects each deck while lighting them from above via skylight. The luxury yacht is powered by four diesel engines with over 9,000 horsepower altogether.

Lady Moura – $210 million

This 344-foot mega-yacht is owned by billionaire Nasser Al-Rashid. It features a pool with retractable roof, a 75-foot dining table crafted by Viscount Linley and a helicopter. Lady Moura's most remarkable feature, however, is the beach resort that slides out of one side of the boat. The mini resort features not only sand and deck chairs, but even includes palm trees for a truly authentic resort experience. 

Octopus – $200 million

Owned by Microsoft co-founder Paul Allen, Octopus is the world's eighth largest yacht. The 414-foot yacht was first launched in 2003. The yacht has two helicopters, a submarine with room for ten men and seven boats. For those who'd like to see the ocean floor, the yacht even includes a remote controlled vehicle to do so.

Rising Sun – $200 million

Co-owned by Oracle's Larry Ellison and media mogul David Geffen, Rising Sun is 453-feet and five stories of oceangoing luxury. It was built with one goal in mind—to exceed the size of Paul Allen's Octopus, above. This pricey yacht has 8,000 feet of living space with onyx countertops and Jacuzzi bathrooms, a spa and sauna, a gym and even a private movie theatre with an enormous plasma screen.