City of London
The City of London is where, around 2,000 years ago, the Romans founded the settlement they called Londinium. Surrounded by a wall for centuries, this was the historic city which grew into modern London, and the place marked by fire and plague.
Known as the Square Mile, the City of London has by far the lowest population of all 33 London boroughs, at around 8,000 people. But as a financial centre, home to banks, insurers and law firms, in the daytime that number swells to over 500,000.
An estimated 10 million visitors come each year to see sites like the St Paul’s Cathedral, the Bank of England, the Barbican Centre and, from 2026, London Museum.
There’s history around every corner here. Fleet Street is no longer the home of London’s newspapers. But reporters still gather around the Old Bailey, the City’s historic criminal court.
The Barbican estate is an icon of Brutalist architecture in the City of London.
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The Great Pestilence in London
Plague killed over half of the city’s population between 1348 and 1352
Noble squares & charming cheesecake: A Regency tourist's London diary
Elizabeth Chivers’ unpublished diary gives a peek into her whirlwind 20-day London adventure
How did London celebrate VE Day on 8 May 1945?
Joy, relief and grief as the city marked ‘Victory in Europe’ near the end of the Second World War
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