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.
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.
St George Wharf overshadowing the headquarters of the Secret Intelligence Service (MI6) - the cream and green building.