Here in London, there are two regular bus routes which provide a great view of some of the best sights in the city.
Using this free download, you only need to pay the normal cost of a bus ride to see the sights.
So, take a seat on the top deck, and use your free tour to get all the information about 40+ sights on the routes.
Sights include: St. Paul's Cathedral, Tower of London, Piccadilly Circus, Inns of Court, Oxford Circus, Selfridges, London Stone, Tower Bridge, Hamley's, Marble Arch, Trafalgar Square, Admiralty Arch, Ye Olde Cheshire Cheese, and many others!