They are more than twice the size of Nelson's Column and today three of the largest cranes in the world were ferried along the Thames to a new super port.
They'll be used to lift containers from giant cargo ships onto the quayside at London Gateway, the £1.5 billion global shipping port which is set to create thousands of jobs in the region.
Derek Johnson reports and speaks to Simon Moore, of DP World London Gateway, and Andrew Bowen, Engineering Director.
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