Arrowhead Stadium is a clean cut, professional, simplistic design executed perfectly. It's hard to believe that the stadium is the fifth-oldest in the league, and can hold a whopping 76,000 fans. The stadium has a classic charm, and the $375 million renovations in 2010 added a modern edge into the mix, to create a fantastic arena that saw the Kansas City Chiefs fans reclaim the world record for 'loudest fans' with a ear-melting 142.2 decibel noise during their win over the Patriots.