Ganon's Tower is the final dungeon in The Legend of Zelda: A Link to the Past. It is located on Death Mountain in the Dark World and serves as the Dark World's equivalent of the Tower of Hera. It cannot be accessed until Link has freed all the Seven Maidens. When all seven crystals have been gathered, the force field placed around the tower is broken, and a staircase reveals itself. Although the artwork implies that it lacks any walls besides the pillars holding up the tower, the game itself shows that it does have walls.