The moon (Musandam, Oman)
So much so, that I was rendered speechless for basically the whole trip. I was so in awe with everything, that I couldn't really think of worthy words to say. About anything. (Also, my mouth was very dry because it's dusty).
Glorious barren mountains, fjords and endless sea. All sorts of dolphins, whales, goats and donkeys and not so many humans.
Anyhow, If you want to see some insane landscapes that make you feel like you're on a different planet, and/or your vocal chords need a rest, I highly recommend going to there.