Arrowhead Stadium is a large outdoor stadium located in Kansas City, Missouri. It is primarily known as the home of the Kansas City Chiefs, a professional football team in the NFL. Opened in 1972, the stadium has a seating capacity of over 76,000, making it one of the largest stadiums in the United States. The stadium is famous for its loud atmosphere, often setting records for crowd noise. It features a distinctive design with a large scoreboard and is part of the Harry S. Truman Sports Complex, which also includes Kauffman Stadium, home of the Kansas City Royals.