The Church's guideline concerning placement of the angel Moroni figures is that where possible, they should face eastward.
What direction does Moroni face on the temple?
Moroni appears on the cover of some editions of the Book of Mormon. Statues of the angel stand atop many LDS temples, with most statues facing east.
Why is the Angel Moroni on top of LDS temples?
While the Angel Moroni statue occupies a prominent place on many temples throughout the world—symbolizing the restoration of the gospel of Jesus Christ—it is not a requirement of temple design. Some temples may include the statue, while others may not.