Massive floating cone filmed over Japan

[Magical Realist]

I don't know what this could be. The comments suggested Mt. Fuji undergoing some bizarre atmospheric optical distortion. Perhaps some kind of fata morgana..

https://www.youtube.com/watch?v=2Hsz7w97mwM&t=73s

[C C]

[...] Perhaps some kind of fata morgana...

Yah, if the footage itself is untampered with.

Speaking of Fuji, Osorno is a remarkable lookalike in Chile, but is shorter in height. (EDIT: Fuji literally twice as tall if going by prominence.)

[Syne]

Likely similar to this mirage: https://www.youtube.com/watch?v=rSE1WdYngGA

[Zinjanthropos]

We’re the people in video on the plane?