First time I went to the top of Cadillac, my wife and I watched the most amazing meteor storm as we lay on the hood of our rented car. Unforgettable. Not sure if you can drive up there at night anymore.
I was near the summit of this mountain with my father and brother to watch a total eclipse of the sun. The town of Bar Harbor was mostly buried under a sea of clouds, but we saw the eclipse clearly from up here. It was incredible.
I found a web story about it.