Structures enclosing the field of play are a defining characteristic of some professional football franchises. These enclosed venues, often called domes or retractable-roof stadiums, provide a climate-controlled environment, shielding players and spectators from inclement weather. Examples include AT&T Stadium (Dallas Cowboys) and U.S. Bank Stadium (Minnesota Vikings).
The primary advantage of such facilities is their ability to ensure consistent playing conditions regardless of external environmental factors like rain, snow, or extreme temperatures. This promotes player safety, reduces the likelihood of game postponements, and enhances the fan experience. The controlled atmosphere also allows for better acoustics and more elaborate pre-game and halftime entertainment. Historically, enclosed stadiums offered a competitive edge in attracting major sporting events, including Super Bowls, and concerts.