The Duke of York will abseil down the Shard skyscraper in London for charity today.
Other participants include Ffion Hague, the wife of Foreign Secretary William Hague, and leading businessmen and women.
The Shard is the tallest building in Europe, and its viewing galleries will be open to the public in February next year.
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Europe's largest bank had earlier warned it was considering relocating over fears of stricter regulation.
Expect it to be bitterly cold in the biting wind chill.
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