Buckingham Palace is the official London residence of the British monarch and is the setting for state occasions and royal entertaining, a base for all officially visiting Heads of State, and a major tourist attraction. It has been a rallying point for British people at times of national rejoicing, crisis or grief. "Buckingham Palace" or "The Palace" is how press statements issued by the Royal Household are atributed.
Originally known as Buckingham House, the building forming the core of today's palace was a large townhouse built for the Duke of Buckingham in 1703 and acquired by King George III in 1762 as a private residence. It was enlarged over the next 75 years, principally by architects John Nash and Edward Blore, forming three wings around a central courtyard. Buckingham Palace finally became the official royal palace of the British monarch on the accession of Queen Victoria in 1837. The last major structural additions were made in the late 19th and early 20th Century, when the large East wing facing The Mall was added. The East Front was refaced in Portland stone in 1913 as a backdrop to the Victoria Memorial, creating the present-day 'public face' of Buckingham Palace, including the famous balcony. The State Rooms form the nucleus of the working Palace and are used regularly by The Queen and members of the Royal family for official and State entertaining. and the grounds are used for the Royal Garden Parties.
To get there from the Americana; take the Jubilee Line southbound from Baker Street to Green Park.
Exit the station and go into Green Park, there is path that goes directly to the Palace (200 meters).