What are the world's largest cruise ships? Whether you measure by gross metric tonnage (a measure of volume, not weight) or number of passengers, you'll come up with a similar top 10 list.

Cruiseable's Ship Discovery Tool lets you sort more than 400 ships by size (largest, smallest), age, ratings, passenger to crew ratio and roominess index. But for a quick at-a-glance look at the big ships as well as a summary of highlights, it's hard to beat this infographic from Nature’s Water, providers of water treatment systems in Ireland. Feel free to download and share (and click the infographic to enlarge it).

Here are the World's 10 Largest Cruise Ships:

Courtesy of Nature’s Water(Click to enlarge.)