20. London

Joanna Symons: "William Wordsworth wrote of the fine view from Westminster Bridge, and more than 200 years later it is still one of the great scenes of London, both by day and night, though the view from neighbouring Waterloo Bridge is perhaps even more impressive. On one side are the Houses of Parliament, Big Ben and the London Eye - on the other, the towers, domes and skyscrapers of the city. It’s a reminder that London is one of the most exciting cities in the world."

An expert guide to London

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