Camp Nou — Barcelona, Spain

Camp Nou is the largest stadium in Europe with a capacity of 99,354, yet its ongoing Espai Barça renovation—a €1.5 billion project—will enlarge it to 105,000 covered seats under a translucent roof. This scale creates a visual spectacle unmatched by any other ground, and it has hosted major events like the 1982 World Cup and two Champions League Finals. However, its atmosphere is often 30% less intense than Signal Iduna Park, according to fan polls. The upper tiers appear to scrape the clouds, offering a unique sense of grandeur.