The term 'ATHLETIC SITES' can be broken down into two crossword solutions: ARENAS (6 letters) and STADIUMS (8 letters). An arena is an enclosed area, often circular or oval-shaped, designed to host sporting events, concerts, or other performances. ARENAS are typically found in cities and are used for basketball, hockey, and other sports. A stadium is a large outdoor venue, usually with a roof, used for hosting sporting events, concerts, and other large gatherings. STADIUMS are typically found in larger cities and are used for football, baseball, and other sports.