More than 6,000 people are parading on the streets of central London as part of the Lord Mayor\'s Show. Thousands of people were expected to line the streets in the Square Mile to watch the floats pass by. The spectacle, which is 800 years old and three miles long, goes from Mansion House via Bank, St Paul\'s and Fleet Street, ending up at the Royal Courts. The new Lord Mayor, Alderman David Wootton, began serving as Mayor of the City of London from Friday. The procession includes more than 1,200 children, 385 volunteer workers, several dozen disabled people and nearly 500 animals. Floats include Barts Hospital, the British Legion and 43 charities. The show will culminate with the new Lord Mayor\'s fireworks display over the Thames at 17:00 GMT.