Very cool!

You can do this with the naked eye in an area with tall sharp mountains such as the Alps, Rockies, Andes, etc. at times when the moon is low in the sky.

Move to a position where the moon is partially obscured by a mountain across the valley, and watch. It is surprisingly easy how little walking it can take to find a useful alignment. Then just stand and watch. The effect is amazing, even more powerful than watching it drift out of frame the telescope — it really shifts one's perspective to feeling how the earth moving.