Please remember that all historical sites and buildings were SANDBAGGED in the period of BoB. Monuments were covered up or removed to prevent bomb damage. Just look at the famous Anteros statue on Piccadilly Circus:
1896:
WWII:
http://en.wikipedia.org/wiki/Piccadilly_Circus
"The Shaftesbury Memorial Fountain in Piccadilly Circus was erected in 1893 to commemorate the philanthropic works of Anthony Ashley Cooper, 7th Earl of Shaftesbury. During the Second World War, the statue atop the Shaftesbury Memorial Fountain was removed and was replaced by advertising hoardings. It was returned in 1948."