Located in the City of Westminster, Buckingham Palace has served as the official London residence of the British monarch since 1837.
Originally a house built for John Sheffield, duke of Buckingham in 1705, George III employed architect John Nash to convert the townhouse into a palace in neoclassical style.
The palace is sometimes nicknamed 'Buck House'.
The stables, an exhibition gallery, and some of the rooms (during the summer months) are open to the public.
The Wikipedia page is [1] and the website is [2].