An arena is a large, enclosed area used for sports and entertainment events. Rinks are arenas with a smooth surface of ice used for ice skating and hockey. STADIUMS are large arenas with tiered seating for spectators. Ovals are arenas with an oval-shaped track used for motor racing and athletics. Puntas are arenas with a circular or oval-shaped track used for bullfighting. STADIA are arenas with a running track and seating for spectators. Centers of action are arenas with a variety of activities such as sports, entertainment, and shopping.