London is the capital of England and the UK. London is divided into three big parts: the CITy, the WEST End and the EAST End. the City of london is a big Financial and business centre . london has numerous sites which attract crowds of tourists. Piccadilly Circus is the heart of London.St. Paul's cathedral is Sir Christopher Wren's creatoin. The building of the cathedral began in 1675 and finished in 1710. The houses of parliament are not anciant , rebuilt in 1870 after a fire. When Parliament sits , a flag flies from Victoria tower by day and at night a light shines in the clock. Trafalgar Square is famous for a tall monument in the centr of it, called Nelson's Column, and built to commerate the Battle of Trafalgae and honour Admiral Nelson.