CNN has a story on the arrival of the world's biggest container ship, the MS Emma Maersk in Britain on its maiden international voyage from Sweden to the Far East and back to Europe with 11,000 cargo containers of mainly Christmas related goods. The ship, which weighs 170,000 tons (190,400 U.S. tons) is too large for the Panama Canal even if the recently approved widening goes ahead.
A few of these ships would have been handy during World War Two, 190,400 U.S. tons is an entire convoy of Liberty Ships.