Buckingham Palace (UK: / ˈ b ʌ k ɪ ŋ ə m /) [1] is a royal residence in London, and the administrative headquarters of the monarch of the United Kingdom. [a] [2] Located in the City of Westminster, the palace is often at the centre of state occasions and royal hospitality.It has been a focal point for the British people at times of national rejoicing and mourning.