Map of London St Pauls tube station
When the old St Pauls Cathedral was destroyed in the Great Fire of London in 1667, Sir Christopher Wren was commisioned to built it's replacement. The result is the second largest dome in the world (after St Peters in Rome). Imagine how impressive it must have been when the only other tall buildings around were church spires!
If you have the time and energy, you can pay to climb up the dome when there are no service in the Cathedral. Inside the dome you first reach the whispering gallery. It is said that if you whisper against the wall of the gallery, a person standing on the opposite side of the dome can hear you. Further up, you proceed between the inner and outer skins of the dome - a fascinating insight into how the Cathedral is built - before emerging to the wonderful view from the very top of the dome. There is a bylaw preventing any taller buildings being built close by, so none of the taller buildings get in the way of your view of London (and vice versa).
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