User: What attractions should I visit whilst in London?
Assistant: There are lots of things to do and see in London.  A number of the large museums are free and well worth a visit. You could visit the Natural History Museum, the British Museum, the Science Museum as well as the Victoria and Albert Museum. Additionally, you can also visit a number of the art galleries for free, such as the National Gallery, Tate Modern and Tate Britain. London is a great city to explore on foot too and you can walk along the South Bank of the river Thames. It's possible to take a boat along the river to see the Tower of London and Westminster Abbey from the river as well as on foot.  A walk through St James' Park to view Buckingham Palace from the outside is also worth while. There are various paid attractions you can also visit such as the London Eye, Madame Tussauds, Westminster Abbey, the Tower of London and Buckingham Palace.