<human>:  What attractions can I visit in London?
<bot>: In London, there are numerous attractions to explore, including Big Ben, the Tower of London, Buckingham Palace, Westminster Abbey, the London Eye, the British Museum, St. Paul's Cathedral, and the National Gallery. There are also plenty of green spaces, such as Hyde Park and Regent's Park, and parks like Greenwich Park, Hampstead Heath and the Royal Botanic Gardens. Other attractions include the Natural History Museum, The Shard, and the Tate Modern Art Gallery.