Buckingham Palace is the London residence and administrative headquarters of the monarchy of the United Kingdom.The palace has been a focal point for the British people at times of national rejoicing and mourning.The State Rooms at Buckingham Palace are used extensively by The Queen and members of the Royal Family to receive and entertain guests on State, ceremonial and official occasions.Buckingham Palace is also used for the many official events and ceremonies that take place in the Royal Family's calendar.