San Siro — Milan (1990)

The San Siro hosted the opening match of Italia 90 — Cameroon's shock defeat of Argentina — and was upgraded for the tournament with the distinctive external staircases that became its signature. The atmosphere for the Italia 90 semifinal between Italy and Argentina in Naples was reported to be 12 decibels louder than the average match at Wembley Stadium, making it the loudest ever recorded at a football match.