Whilst it is possible to use special sightseeing hop-on/hop-off open top buses operated by private companies to explore the major tourist attractions in London, the tickets are quite expensive although one has the benefit of a tour guide pointing out the places of interest. However, many people do not realise that they can use regular London buses to see and to visit all London attractions. Such journeys are free even with multiply use for those visitors who have travel cards or oyster cards.
The London public transport system comprises over 700 bus routes and many pass some of the iconic sights of London. The following are a couple of examples. The Number 73 Bus as a part of its journey passes Buckingham Palace Gardens, the Wellington Arch, Hyde Park, Marble Arch and travels along the entire length of Oxford Street. The Number 11 Bus passes through the City of London (the financial centre of the capital), St Pauls Cathedral, Trafalgar Square, the Houses of Parliament and Westminster Abbey.
For details of some of the suggested routes go to http://golondon.about.com/od/London-Bus-Routes/tp/London-Bus-Routes-For-Sightseeing.htm and for a map showing these routes go to http://content.tfl.gov.uk/bus-route-maps/key-bus-routes-in-central-london.pdf.
For your London Vacation Rental go to https://www.chsrentals.com/london