Another famous soliloquy is the "How oft when men are at the Point of Death" soliloquy by Romeo when he sees Juliet lying in the crypt. He muses on why she still looks so beautiful even in death, lacking the knowledge of what the audience knows: that she is really alive.
Possibly the most famous soliloquy from Romeo and Juliet is Romeo's speech that begins "But soft, what light through yonder window breaks?" Juliet has her famous "Romeo, Romeo, wherefore art thou Romeo" soliloquy in the same scene. This is Act II, Scene 2.