Oh I should add to my own personal list: the multiple aurora shows over the past couple of years that I've been able to see from my own house! May 2024 and especially November 2025 were completely mind-blowing.
I found myself joyously whooping and yelling at the sky. I kept thinking of the Cree name for a really active aurora show, cı̂payak kâ-nı̂mihitocik, which translates to "the ancestors are dancing". It was truly an emotionally powerful event to bear witness to.