Buckingham Palace has been the official residence of the British royal family since the 19th century. Currently, it is the London location in which the Queen spends most of her time. The palace is splendid both inside and outside. Some of the more than 600 rooms in the palace include the Throne Room, White Drawing Room, Ballroom and Picture Gallery. At the gates of Buckingham Palace, the Changing the Guard (or Guard Mounting) ceremony by the Queen's Guard takes place at 11 a.m. most days of the week. It attracts and interests tourists from around the world. Marching with great pomp and precision to military music and shouted orders, the guards—dressed in traditional red coats and bearskin hats—do a drill performance and salute.