The Castellana: Madrid's great boulevard
The Paseo de la Castellana is the backbone of the Madrid Marathon. This six-kilometre avenue — glass towers to the north, world-class museums to the south — appears both at the start and in the final push to the finish. Running the Castellana with the city closed for the marathon, the Bernabéu visible nearby and Madrid's skyline stretching ahead, is an image runners carry for years.