If you visit London for the first time then I really suggest you get yourself a London Pass. I have no doubt that you will be visiting most of the tourist attractions and this card offers you entry into most of them.
This pass allow you entry into more than 50 top attractions in London including Tower of London, The London Zoo, Thames River Cruise, St Paul’s Cathedral, Windsor Castle, The Tower Bridge Exhibition, Kensington Palace, Hampton Court Palace, London Bridge Experience, Churchill Museum and Cabinet War Rooms and Shakespeare’s Globe Theatre Tour. You also get
unlimited use of the Underground, red buses and Docklands Light Railway.
I will not buy the 1 day pass if you are planning on using it for 1 day only. There is so much to see in London and it is impossible to see everything in one day. You will be wasting money.
You can view the price details on this web site as well as the packages on offer:
http://www.partner.viator.com/en/8295/price-guide/3138LONDON
This The London Pass is written on Nelmitravel