Where Do You Find Magic Spheres In Final Fantasy X?

There are several places where magic spheres can be found in Final Fantasy X. The most common is the Tower of Babil, which can be found in the central area of the game. There are also two spheres located in the air near the end of the game, one near Tidus and Yuna’s final battle and another in a secret location accessible only by using a key found inside a crystal ball.