When one comes to make windows for his house, he should not make them across from the abominations. Since when he opens [them], he appears as if he is bowing. Moreover, it is since he is always turning towards the idolatry, and it is written (Leviticus 19:4), "Do not turn to the idols." And a synagogue should not have a window that is open across from the idolatry, nor should [holy] books be placed in the window across from the idolatry.