15 of the World's Biggest Ships!

When we read about the largest ships in the world but fail to mention the RMS Titanic, we experience a twinge of sadness. But it turned out that compared to some of these ships, the once-largest ship afloat today resembles a tugboat. Here are 15 of the largest ships in the world, ranging from a boat that must go three kilometers to stop to an ore hauler that means business.