Every year, SuperYachts.com compiles a list of the largest yachts currently on the water. A yacht is a recreational boat. It was originally defined as a light, fast sailing vessel used by the Dutch navy to pursue pirates and other transgressors around and into the shallow waters of the Low Countries.

Yachts are different from working ships mainly by their leisure purpose, and it was not until the rise of the steamboat and other types of powerboat that sailing vessels in general came to be perceived as luxury, or recreational vessels. Later the term came to encompass motor boats for primarily private pleasure purposes as well.

Motor yachts typically have one or two internal combustion engines that burn diesel fuel. Depending on engine size, fuel costs may make motor yachts more expensive to operate than sailing yachts.

Motor yachts generally fit into the following categories:

-- Day cruiser yacht (no cabin, sparse amenities such as refrigerator and plumbing)

-- Weekender yacht (one or two basic cabins, basic galley appliances and plumbing)

-- Cruising yacht (sufficient amenities to allow for living aboard for extended periods)

-- Sport fishing yacht (yacht with living amenities and sporting fishing equipment)

-- Luxury yacht (similar to the last three types of yachts, with more luxurious finishings/amenities)

Here is the countdown list of world’s top ten largest yachts. These great yachts are some of the most expensive toys with unique and luxury features.