Football is the most popular sport in the world. It is a society-wide phenomenon which affects our lives in so many ways. The stadiums are prime examples of that—the temples of football which define the character of many city districts, and influence the infrastructure including the flow of large numbers of people. We can look at them from a strictly sport-related point of view, but we can also consider them from an architectural or sociological point of view. Where do we stand with football stadiums in Prague? What are Sparta Praha's plans for moving to Strahov and leaving Letná? What should the national football stadium look like? What are the challenges and risks associated with its construction? How can football stadiums contribute to environmental protection? And how do other European capitals address these issues?