So basically the title says it all. I'm thinking of creating a story in which a small amount of humans (Around 64 thousand in the area the story will cover). As you could guess I need a lot of help, some of the main plot holes that are paining my feeble mind are: How did they survive? How long should it be after the ice age? Could any buildings/Cities possibly survive? New York for instance? Could anything survive in a manner which differs from how the humans in question survived? Any help will be immediately followed by copious amounts of love.