St Paul's Cathedral ... Exactly 530 stairs and 111m to take you to the top with a three-stage journey: - some 30m and precisely 259 steps above to reach the interior walkway around the dome's base; this is the Whispering Gallery , so called because if you talk close to the wall it really does carry your words around to the opposite side, 32m away. - climbing another 119 steps you reach the Stone Gallery, which is an exterior viewing platform, with 360-degree views of London, all of which are...
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