Stadiums, ARENAS, and bowls are all types of large venues used for sporting events and concerts. Stadiums are typically outdoor venues with seating for tens of thousands of people, while ARENAS are indoor venues with a capacity of up to 20, 000 people. Bowls are large outdoor stadiums with a bowl-shaped design, usually with seating for up to 80, 000 people. All three types of venues provide an exciting atmosphere for fans to enjoy their favorite sports or music.