"I had a dream last night, the world was set on fire"

An atom bomb dropped in my dreams last night. I got to look out from the underground concrete radio-station bunker (yes I'm aware of the contradiction) I was in at the darkness and flame and cinders that used to be places I knew.

I'd like to know what corner of my subconscious vomited this out, as I'm not generally prone to End Of The World trauma.