Watch as months of redevelopment work on the Queen Elizabeth Olympic Park flash before your eyes in just three minutes.
The video, from the London Legacy Development Corporation, has been released to mark 100 days until the opening of the North Park venue, which will host music events this summer.
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The Hammers moved to the Olympic Stadium in May leaving their old site to be developed for housing.
The first officer shouted "look!" as the drone passed next to the right wing at around 11,000ft above south-east London.
They found a sheepish looking ewe with a traffic cone on her head in the middle of a field.