Arrowhead Stadium

GEHA Field at Arrowhead Stadium in Kansas City is the loudest building in football, the fortress of the Chiefs where a sea of red has twice set the Guinness World Record for crowd noise at an outdoor stadium. The playing field sits three stories below street level, and combined with the steep seating bowl it acts as a natural amplifier that traps sound over the field. Few road environments in American sports are as feared, and the tailgate culture in the surrounding parking lots is legendary in its own right. It remains one of the NFL's oldest stadiums still hosting a full slate of games, having aged into an icon rather than a relic.

Opened in 1972, Arrowhead has hosted decades of Chiefs playoff runs and AFC Championship games that built its reputation as one of the NFL's most hostile venues. On September 29, 2014, during a Monday Night Football game against the Patriots, Chiefs fans set a Guinness World Record with a 142.2-decibel crowd roar — reclaiming a mark first set there in 2013 after briefly losing it to Seattle. That same wall of sound now greets the world for a run of 2026 World Cup matches.