Heysel Stadium Disaster (Brussels, 1985)

Heysel Stadium’s wall collapse, which killed 39 Juventus fans, is the deadliest single-structure failure in European football history, occurring 10 minutes before the 1985 European Cup Final. The crumbling 60-year-old stadium had 12 emergency exits—half the standard for venues of its 70,000 capacity—and only 15% of its segregation barriers were intact, worse than the average 40% failure rate in similar disasters like #5 Astroworld. Policing levels were 50% below UEFA’s minimum, contributing to the chaos that triggered the charge and collapse. This failure set a benchmark for inadequate infrastructure, outperformed only by historical tragedies like Hillsborough.