Saturday by Ian McEwanRead about the other books on the list.
One day in the life of central London, including diverted traffic, brain surgery and armed robbery. If you wonder how 24 hours in one man’s life could be so eventful, you must live in the suburbs. Henry Perowne, neurosurgeon, is an intelligent mind wandering through the British capital, and there is little he doesn’t pause to ponder on: from the BT Tower, to squash, to the war in Iraq. One of my favourite state-of-the-nation novels.
Saturday also appears among Jimmy So's five best 9/11 novels, and on John Mullan's lists of ten of the best good doctors in literature and ten of the best prime ministers in fiction.
Also see: nine of the greatest (worst) megacities in sci-fi.