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Crowds by the river cheer as the flotilla passes the Shard during the Thames Diamond Jubilee Pageant on the River Thames in London on June 3, 2012. Queen Elizabeth II sailed Sunday on a royal barge at the centre of a spectacular 1,000-boat river pageant on the Thames, the set-piece of celebrations to mark her diamond jubilee. AFP PHOTO / POOL / JUSTIN TALLIS (Photo credit should read JUSTIN TALLIS/AFP/GettyImages)
Crowds by the river cheer as the flotilla passes the Shard during the Thames Diamond Jubilee Pageant on the River Thames in London on June 3, 2012. Queen Elizabeth II sailed Sunday on a royal barge at the centre of a spectacular 1,000-boat river pageant on the Thames, the set-piece of celebrations to mark her diamond jubilee. AFP PHOTO / POOL / JUSTIN TALLIS (Photo credit should read JUSTIN TALLIS/AFP/GettyImages)

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London's newest landmark: The Shard

Architect Joost Moolhuijzen discusses the official unveiling of the Shard as the latest addition to London's skyline.

London's newest landmark: The Shard

Architect Joost Moolhuijzen discusses the official unveiling of the Shard as the latest addition to London's skyline.