What's Your Favorite Apocalypse?

I am writing a Team Girl Alternative Reality story inspired by the C. J. Cherryh short story "Cassandra". In my story, Eile and Sunny run a coffee/bread/sandwich shop and live above their store. Their life is ideal, except that every waking moment of the day Sunny sees visions of apocalyptic doom. She can't shut it off; the visions come uncontrolled and without pause. However, they are not visions of a single apocalyptic event, but multiple events, a different one each moment. This has convinced her she is merely hallucinating, until the day a new shrink tells her that maybe they're real, but not visions of some future.

Maybe they're visions of the fates of multiple alternative worlds.

During the course of the story, I will describe Sunny's visions. As such, I need a list of apocalyptic disasters. I am not at a loss for ideas, but even I can't think of everything.

So I would like to know: what is your favorite end-of-the-world scenario?

Write a comment on this blog, or comment on my Facebook post.

Thanks in advance.