Stadium arenas or modern stadium, in Sacramento, is a place or venue for outdoor sports, concerts or other events and consist of a field surrounded by a structure designed to allow spectators to stand or sit and view the event. "Stadium" comes from the Greek word "stadion" and the oldest known stadium is the one in Olympia, Greece. Different sports require fields of different size and shape. Some stadiums are designed primarily for a single sport while others can accommodate different events, particularly ones with retractable seating.
An Athletic Field, in Sacramento, or a playing field is used for playing sports or games. They are generally outdoors, but many large structures exist to enclose playing fields from bad weather.