Chicago has the lot: itinerant artists babbling Beat, Polish aunties stuffing sausage, African-American mothers organising the block, blue-collar guys bad-mouthing the Bears, a crooner singing the blues on the South Side. It's a city that wears its American heart proudly on its sleeve.

This diverse mix has built a city with an unrivalled tradition of jazz and blues, an astonishing architecture, an appetite for hearty food, award-winning newspapers, universities full of Nobel laureates and some of the most die-hard sports fans you'll ever meet.