When Did Big Ben First Bong?

Millions live there, millions more visit each year – but how many really know London?

Find out:

• How New York’s famous Central Park came to be modelled on a seventeenth-century London square
• When Primrose Hill almost gained a pyramid even larger than the Great Pyramid of Cheops
• Why about 640 people came to be drowned in the Thames in a single night
• What the royal family might do to escape London if the balloon ever goes up
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