The Massassi Arena, located on Yavin 4, was once a great fighting arena created by the Massassi people. The Arena was multi-leveled stone structure, with boxes on the top level at its east and west. A pyramidal altar was to its north, and a gate to its south. Prior to the Battle of Yavin, the arena was captured from the Rebel Alliance by a force of Imperial stormtroopers, who converted it into a monitoring outpost.