Cargo ships are becoming larger and larger in size. Today the largest ship is the CSCL Globe. It measures more than 1,313 ft in length can carry about 19,000 containers.

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Source: The BBC

CSCL Globe is large than the Triple-E class of vessels. The following infographic from Allianz shows the growth of container ship sizes:

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Source: Allianz

You may also want to watch the fascinating documentary from the Smithsonian Channel called “Mighty Ships“.