There are signs when these civilizations come to an end
I've been listening different stuff lately, but overall the same. Mostly metal, usually thrash/groove/progressive/power metal with some heavier death/black in between: Dream Theater, Queensryche, Nevermore, Sepultura, Machine Head, Pantera, Mayhem, Mirrorthrone, Satyricon, Slayer, Iced Earth, Blind Guardian, Mastodon (recent interest), High on Fire, Death.
Drum and bass, downtempo, pipe orgam symphopnies, all that jazz.
I'm also digging Skyrim's soundtrack.