London
Nine million people across six hundred square miles, which makes it less a city than about thirty of them pressed together, each with its own high street and its own opinion of the others. Almost nothing here is central, the good hotels are scattered accordingly, and choosing a neighbourhood matters more than in any other European capital.
Hotels reviewed here

The London room where the bed wins and the second guest loses
citizenM Tower Bridge has designed brilliantly for one occupant, built a lobby worth working in and a rooftop worth staying up for. The room rate is the argument.
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Things to do in London, ranked by whether they survive the queue
Thirty million visitors a year concentrated onto about eight attractions. What is worth it, what is worth it only under conditions, and what to do instead.
Where to stay in London, by the evening you want to walk out into
There is no centre of London, which is why "central" is a phrase used mostly by people selling rooms. Eight districts, what each is for, and the one question to ask at booking.