The term "dome" commonly refers to the architectural structure used in sports facilities, particularly in American football and baseball. A dome stadium has a roof that is often spherical or hemispherical, providing protection from weather elements and allowing events to be held regardless of external conditions. This design is prevalent in facilities like the Mercedes-Benz Stadium in Atlanta and the Rogers Centre in Toronto. Domes enhance the spectator experience by creating a controlled environment and can provide unique aesthetic appeal to the sporting venue.