For hundreds of years, Barcelona and Madrid have shared a deep rivalry. Throughout history, they have competed in practically every aspect of social life, sport, politics, and culture. While competition between cities is commonplace in many nations around the world, in the case of Barcelona and Madrid it has been, on occasion, excessively antagonistic. Over time they have each tried to demonstrate that one was more modern than the other, or more avant-garde, or richer, or more athletic, and so on. Fortunately, the Spain of today is a democracy and every nation and region of the State has the...