Buckingham Palace has been the official residence of the British royal family since 1837. Now it is being used as the administrative headquarters of the Queen. It is primarily used for holding official receptions and functions held by the queen. Every year, thousands of visitors visit the state rooms. Buckingham Palace is 108 meters wide, 120 meters deep, and 24 meters high. It consists of 775 rooms, including 19 state rooms, 52 royal guest bedrooms, 188 staff bedrooms, 92 offices and 78 bathrooms. Royal functions and State visits are held by the royalty at Buckingham Palace. It is not a museum or an art gallery, but is beautifully decorated with expensive art pieces and has one of the most exclusive art collections in the world. Portraits from the time of Queen Victoria hang on the palace walls.It is also used for state banquets and formal occasions such as diplomatic receptions held by the queen, which are attended by a large number of guests. These are very formal events where the queen meets the head of missions. This carries tremendous importance for visiting diplomats. The ballroom is used for concerts and art performances. Aside from these, twenty one investitures are held here every year. Here the queen awards the recipients of British Honor and other awards for bravery.From the ballroom, halls lead into magnificent rooms overlooking gardens and lawns. It has been a stunning setting for annual garden parties since 1868. The state dining room is located on the western side of the palace. This is also the main state room. Many of the important dignitaries including prime ministers, presidents, celebrities, and winners of The Order of Merit have had the honor of dining here.The music room is located between the white and blue drawing rooms. The white drawing room is the last suite of rooms. This is the most magnificent of all the state rooms. It serves as a royal reception room for the queen and other members of the royal family to greet guests before official functions. Court gatherings are held by the queen in the throne room. This room is also used for Jubilees and formal wedding photographs.