The last gold medal has been won, the last world record broken, and the Olympic flag is now in the care of London’s mayor, Boris Johnson. What now?

As far as the games themselves are concerned, China delivered the good, the bad, and the odd. The opening and closing ceremonies and the sporting venues were astonishing; if London’s experience with Picketts Lock, the Millennium Bridge, the Dome, Wembley Stadium and Terminal Five is representative, then the UK will be hard-pressed to match them.