Mayor Boris Johnson is a keen cyclist and launched a bicycle hire scheme, affectionately known as 'Boris bikes' in 2010. Since then the number of cyclists in the capital has boomed.
2010/11 saw 540,000 cycle trips made in London per day
173% increase in cycling on London's main roads between 2000/01 and 2011/12
23% of Londoners cycled in the last year (2010/2011)
35% of London households own a bicycle (8% increase over one year, 2010/2011)
1 in 10 Londoners make a round trip by bike every day
48,397 Londoners received cycle training in 2010/11
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A lamp in the tower which houses Big Ben is to be switched off for the first time in more than 70 years.
Sir Bruce entertained audiences for more than seven decades.
Work in the tower will also pause over the bank holiday weekend.