This is Our Game: Inside the World's Greatest Soccer Cities

You know when you're in a Football City.

The murals, the billboards, the graffiti, the colours on the bars and pubs. No two football cities are the same. That cross on the club badge, commemorating a 1st century fisherman martyr (Ajax). The `cemetery' of graves dedicated to the club's league rivals (Napoli). The guttural roar of fans chanting “Aupa Athletic, aupa Euskal Herria!” - a fierce declaration of Basque pride and identity, echoing through San Mamés like a battle cry (Bilbao).

In a wor...