Warning: these ships are no ordinary ships. They not only have room for thousands of passengers, they have enough dining and entertainment options to amuse a small country.
From ice skating rinks to bowling alleys, water parks to bumper cars, and even a floating Central Park, the largest cruise ships in the world are extraordinary feats in design and engineering.
In fact, they are so big, you can even explore then using Google Street View!
Here's our countdown of the five biggest cruise ships worldwide in 2014 (we will need a new list next January):
5. Liberty of the Seas
Operated by Royal Caribbean since 2007, Liberty of the Seas spans 339 metres and weighs a massive 154,407 tonnes. There's enough room for 4,375 passengers, who can enjoy the ship's very own ice rink amongst other amusements. The newly renovated Liberty of the Seas is currently based at Fort Lauderdale and runs Caribbean cruises.
4. Freedom of the Seas
Yet another Royal Caribbean behemoth, Freedom of the Seas set sail in 2006 and is officially identical in size as her sister, Liberty of the Seas. But this ship features 10 swimming pools, a rock-climbing wall, ice skating rink, 3D movie theatre and even a wedding chapel! Freedom of the Seas is based at Port Canaveral, Florida.
3. Norwegian Epic
Since 2010, Norwegian Cruise Line has been offering an unforgettable experience upon the third largest cruise ship in the world. Spanning 329 metres and weighing in at 155,873 gross tonnes, Norwegian Epic hosts no fewer than 5,183 passengers. It's a good job the ship has 20 lounges to enjoy! Norwegian Epic is based in Miami, Florida.
2. Oasis of the Seas
It should come as no surprise that Royal Caribbean has another contestant in this giant line-up; after all they really know how to build big ships! Since 2009, Oasis of the Seas has been sailing the Caribbean waters – all 225,282 gross tonnes of her. Stretching 362 metres in length, she can hold 6,296 passengers over 17 decks, complete with 21 swimming pools! She was the first ship of her size, and held the international crown until…
1. Allure of the Seas
Royal Caribbean outdid themselves with Allure of the Seas. This mammoth vessel is almost as high as the Statue of Liberty and almost as long as five 747 planes end-to-end. Weighing the same as Oasis of the Seas, this ship is recorded as being 5 centimetres longer – just enough to make her the largest cruise ship in the world. There's room enough for 6,296 passengers, who can enjoy activities on 18 decks, and 2,384 members of crew. Amongst her many extraordinary features are a glass-covered atrium, rock climbing walls, surfing simulators, tree-lined avenues and a Central Park. That's right, a floating Central Park. There are 25 dining choices, which include none other than the very first Starbucks on the high seas. Struggling to get around? The zip line will take you across nine decks in before you can say "Bon Voyage!"
But while these might be the five largest cruise ships right now, it won't be long before even more colossal vessels threaten their thrones. For example, in 2014, Quantum of the Seas set sail for the first time, with a 167,800-tonne weight earning it third place on the rankings. Royal Caribbean's latest design will boast 18 decks and features never before seen on a cruise ship, including a skydiving simulator and extendable observation capsule, the North Star, which lifts passengers over 91 metres into the air to enjoy 360-degree views of the ocean! Add to this the family activity centre, SeaPlex, with its flying trapeze, bumper cars and roller-skating, and you really do have a ship like no other.