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The Olympic Stadium as seen from the View Tube near Pudding Mill Lane DLR station.
The top ring of the Stadium was built using surplus gas pipes.
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The Shard, or The Shard London Bridge.
Once complete (~ May 2012) it will be the tallest building in Western Europe at 1016 feet.
It incorporates three nine-metre wind turbines, though, for all their show, they only generate 8% of the energy needs of the building.
The tower is still in use, and is the site of a major UK communications hub.
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St George Wharf overshadowing the headquarters of the Secret Intelligence Service (MI6) - the cream and green building.