OT: It's the end of the world as we know it!

[AgentZero]

I'm just wondering if anyone knows of some end-of-the-world mythology they'd care to share. I've just gotten a good schooling in the Norse version over on #spaceempires, and I'm well familiar with the Christian version from a Catholic upbringing, but I'm wondering about some other theories as to how it's all going to go down.

If you're wondering, it's for a story I'm working on while I'm at my parents house (HifH will get worked on once I get home). I'm not willing to give away much, but suffice to say, I'd like to know about as many end-of-days theories as I can.