When we visit London we always get the number 11 bus which passes nearly all the famous landmarks. After a visit to Harrods,walk down to Sloan Square and get the 11 in Lower Sloan Street to Liverpool Street Station.It goes by Pimlico, Buckingham Palace Road, Westminster, Whitehall, Trafalgar Square, Strand, Fleet Street, St Pauls and The City to Liverpool Street Station. Much cheaper than a bus tour! You can get a bus map on the following website. http://www.tfl.gov.uk/buses/

Enjoy your trip. Jan Scotland