Excited spectators gazed in amazement as rowing triumphs past and present were illuminated on the side of Windsor Castle.
The extraordinary display of digital images was first seen last night night.
It will be repeated tonight, tomorrow and will be seen for the last time on Saturday.
It starts at 9.45pm and runs until midnight. It is free to attend. Click here for road closure information during the display.
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Trains travelling to and from London Paddington are facing 'major disruption' this afternoon, with some services set to be delayed by up to an hour, cancelled or revised.