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London City airport is nearest to the US embassy in London.
The City of London and the city called London are two distinct places.
The head of the City of London is the 'Lord Mayor of the City of London'.
This should not be confused with the 'Mayor of London', who is in charge of the whole of Greater London.
The City of Westminster and the City of London are both within Greater London.
Greater London has two 'cities' within its boundaries. The 'City of London' (usually just referred to as 'The City') and the City of Westminster.
london. london.