Each year the people of Zurich burn a giant effigy of a snowman on Sechseläutenplatz, the city’s central square. How long it takes the snowman to burn – and the time it takes the flames to lick the bundle of fireworks encased in its head, setting off an explosion – dictates how good summer in the Swiss city will be. This year, it took 26 minutes and 30 seconds for the Zurich Böögg to explode, denoting an “average” summer season. Although you wouldn’t think so given the dazzling sunshine and